To many people the Darwinian theory of natural selection or struggle
for existence seemed to change the whole conception of life, and
particularly all the conditions on which the validity of ethical ideas
depends. If only that has persistence which can be adapted to a given
condition, what will then be the fate of our ideals, of our standards
of good and evil? Blind force seems to reign, and the only thing that
counts seems to be the most heedless use of power. Darwinism, it was
said, has proclaimed brutality. No other difference seems permanent save
that between the sound, powerful and happy on the one side, the sick,
feeble and unhappy on the other; and every attempt to alleviate this
difference seems to lead to general enervation. Some of those who
interpreted Darwinism in this manner felt an aesthetic delight in
contemplating the heedlessness and energy of the great struggle for
existence and anticipated the realisation of a higher human type as the
outcome of it: so Nietzsche and his followers. Others recognising the
same consequences in Darwinism regarded these as one of the strongest
objections against it; so Duhring and Kropotkin (in his earlier works).
This interpretation of Darwinism was frequent in the interval between
the two main works of Darwin--"The Origin of Species" and "The Descent
of Man". But even during this interval it was evident to an attentive
reader that Darwin himself did not found his standard of good and evil
on the features of the life of nature he had emphasised so strongly. He
did not justify the ways along which nature reached its ends; he only
pointed them out. The "real" was not to him, as to Hegel, one with
the "rational." Darwin has, indeed, by his whole conception of nature,
rendered a great service to ethics in making the difference between the
life of nature and the ethical life appear in so strong a light. The
ethical problem could now be stated in a sharper form than before. But
this was not the first time that the idea of the struggle for life
was put in relation to the ethical problem. In the seventeenth century
Thomas Hobbes gave the first impulse to the whole modern discussion of
ethical principles in his theory of bellum omnium contra omnes. Men, he
taught, are in the state of nature enemies one of another, and they live
either in fright or in the glory of power. But it was not the opinion
of Hobbes that this made ethics impossible. On the contrary, he found a
standard for virtue and vice in the fact that some qualities and actions
have a tendency to bring us out of the state of war and to secure
peace, while other qualities have a contrary tendency. In the eighteenth
century even Immanuel Kant's ideal ethics had--so far as can be seen--a
similar origin. Shortly before the foundation of his definitive ethics,
Kant wrote his "Idee zu einer allgemeinen Weltgeschichte" (1784),
where--in a way which reminds us of Hobbes, and is prophetic of
Darwin--he describes the forward-driving power of struggle in the human
world. It is here as with the struggle of the trees for light and air,
through which they compete with one another in height. Anxiety about
war can only be allayed by an ordinance which gives everyone his full
liberty under acknowledgment of the equal liberty of others. And such
ordinance and acknowledgment are also attributes of the content of the
moral law, as Kant proclaimed it in the year after the publication
of his essay (1785) (Cf. my "History of Modern Philosophy" (English
translation London, 1900), I. pages 76-79.) Kant really came to his
ethics by the way of evolution, though he afterwards disavowed it.
Similarly the same line of thought may be traced in Hegel though it has
been disguised in the form of speculative dialectics. ("Herrschaft und
Knechtschaft", "Phanomenologie des Geistes", IV. A., Leiden, 1907.) And
in Schopenhauer's theory of the blind will to live and its abrogation by
the ethical feeling, which is founded on universal sympathy, we have a
more individualistic form of the same idea.
It was, then, not entirely a foreign point of view which Darwin
introduced into ethical thought, even if we take no account of the
poetical character of the word "struggle" and of the more direct
adaptation, through the use and non-use of power, which Darwin also
emphasised. In "The Descent of Man" he has devoted a special chapter
("The Descent of Man", Vol. I. Ch. iii.) to a discussion of the origin
of the ethical consciousness. The characteristic expression of this
consciousness he found, just as Kant did, in the idea of "ought"; it was
the origin of this new idea which should be explained. His hypothesis
was that the ethical "ought" has its origin in the social and parental
instincts, which, as well as other instincts (e.g. the instinct of
self-preservation), lie deeper than pleasure and pain. In many species,
not least in the human species, these instincts are fostered by natural
selection; and when the powers of memory and comparison are developed,
so that single acts can be valued according to the claims of the deep
social instinct, then consciousness of duty and remorse are possible.
Blind instinct has developed to conscious ethical will.
As already stated, Darwin, as a moral philosopher belongs to the school
that was founded by Shaftesbury, and was afterwards represented by
Hutcheson, Hume, Adam Smith, Comte and Spencer. His merit is, first,
that he has given this tendency of thought a biological foundation, and
that he has stamped on it a doughty character in showing that ethical
ideas and sentiments, rightly conceived, are forces which are at work in
the struggle for life.
There are still many questions to solve. Not only does the ethical
development within the human species contain features still unexplained
(The works of Westermarck and Hobhouse throw new light on many of these
features.); but we are confronted by the great problem whether after all
a genetic historical theory can be of decisive importance here. To
every consequent ethical consciousness there is a standard of value, a
primordial value which determines the single ethical judgments as their
last presupposition, and the "rightness" of this basis, the "value"
of this value can as little be discussed as the "rationality" of our
logical principles. There is here revealed a possibility of ethical
scepticism which evolutionistic ethics (as well as intuitive or
rationalistic ethics) has overlooked. No demonstration can show that the
results of the ethical development are definitive and universal. We
meet here again with the important opposition of systematisation and
evolution. There will, I think, always be an open question here, though
comparative ethics, of which we have so far only the first attempts, can
do much to throw light on it.
It would carry us too far to discuss all the philosophical works
on ethics, which have been influenced directly or indirectly by
evolutionism. I may, however, here refer to the book of C.M. Williams,
"A Review of the Systems of Ethics founded on the Theory of Evolution"
(New York and London, 1893.), in which, besides Darwin, the following
authors are reviewed: Wallace, Haeckel, Spencer, Fiske, Rolph, Barratt,
Stephen, Carneri, Hoffding, Gizycki, Alexander, Ree. As works which
criticise evolutionistic ethics from an intuitive point of view and
in an instructive way, may be cited: Guyau "La morale anglaise
contemporaine" (Paris, 1879.), and Sorley, "Ethics of Naturalism". I
will only mention some interesting contributions to ethical discussion
which can be found in Darwinism besides the idea of struggle for life.
The attention which Darwin has directed to variations has opened our
eyes to the differences in human nature as well as in nature generally.
There is here a fact of great importance for ethical thought, no matter
from what ultimate premiss it starts. Only from a very abstract point of
view can different individuals be treated in the same manner. The most
eminent ethical thinkers, men such as Jeremy Bentham and Immanuel Kant,
who discussed ethical questions from very opposite standpoints, agreed
in regarding all men as equal in respect of ethical endowment. In regard
to Bentham, Leslie Stephen remarks: "He is determined to be thoroughly
empirical, to take men as he found them. But his utilitarianism supposed
that men's views of happiness and utility were uniform and clear, and
that all that was wanted was to show them the means by which their ends
could be reached." ("English literature and society in the eighteenth
century", London, 1904, page 187.) And Kant supposed that every man
would find the "categorical imperative" in his consciousness, when he
came to sober reflexion, and that all would have the same qualifications
to follow it. But if continual variations, great or small, are going on
in human nature, it is the duty of ethics to make allowance for them,
both in making claims, and in valuing what is done. A new set of ethical
problems have their origin here. (Cf. my paper, "The law of relativity
in Ethics," "International Journal of Ethics", Vol. I. 1891, pages
37-62.) It is an interesting fact that Stuart Mill's book "On Liberty"
appeared in the same year as "The Origin of Species". Though Mill agreed
with Bentham about the original equality of all men's endowments, he
regarded individual differences as a necessary result of physical and
social influences, and he claimed that free play shall be allowed to
differences of character so far as is possible without injury to other
men. It is a condition of individual and social progress that a man's
mode of action should be determined by his own character and not
by tradition and custom, nor by abstract rules. This view was to be
corroborated by the theory of Darwin.
But here we have reached a point of view from which the criticism,
which in recent years has often been directed against Darwin--that
small variations are of no importance in the struggle for life--is of
no weight. From an ethical standpoint, and particularly from the
ethical standpoint of Darwin himself, it is a duty to foster individual
differences that can be valuable, even though they can neither be of
service for physical preservation nor be physically inherited. The
distinction between variation and mutation is here without importance.
It is quite natural that biologists should be particularly interested in
such variations as can be inherited and produce new species. But in the
human world there is not only a physical, but also a mental and social
heredity. When an ideal human character has taken form, then there
is shaped a type, which through imitation and influence can become an
important factor in subsequent development, even if it cannot form a
species in the biological sense of the word. Spiritually strong
men often succumb in the physical struggle for life; but they can
nevertheless be victorious through the typical influence they exert,
perhaps on very distant generations, if the remembrance of them is kept
alive, be it in legendary or in historical form. Their very failure
can show that a type has taken form which is maintained at all risks,
a standard of life which is adhered to in spite of the strongest
opposition. The question "to be or not to be" can be put from
very different levels of being: it has too often been considered a
consequence of Darwinism that this question is only to be put from
the lowest level. When a stage is reached, where ideal (ethical,
intellectual, aesthetic) interests are concerned, the struggle for life
is a struggle for the preservation of this stage. The giving up of a
higher standard of life is a sort of death; for there is not only a
physical, there is also a spiritual, death.