The worth and value of Knowledge is in proportion to the worth and
value of its object. What, then, is the best knowledge?
The exactest knowledge of things, is, to know them in their causes; it
is then an excellent thing, and worthy of their endeavours who are
most desirous of knowledge, to know the best things in their highest
causes; and the happiest way of attaining to this knowledge, is, to
possess those things, and to know them in experience.