Occupations of every kind, however varied they may be, require to be
alternated, fairly, with rest and recreation. It is the worst mistake
to suppose that most and best work can be done when these aids are
omitted. Strictly, no occupation that calls forth special mental and
physical work should fill more than one-third of the daily life. The
minds of men of all classes ought now to be devoted to the promotion of
a systematic method by which the productive labour of every life should
be carried on within the limited term of eight hours in the twenty-four.
The body of man is not constructed to run its completed circle under a
heavier burden of labour.