The Descent of Man

(July 1869, p. 531), well capable of forming a
sound judgment, expresses himself strongly in
favour of this conclusion. Mr. Lecky ('History
of Morals,' vol. i. p. 143) seems to a certain extent
to coincide therein.)
As a struggle may sometimes be seen going on
between the various instincts of the lower animals,
it is not surprising that there should be a
struggle in man between his social instincts,
with their derived virtues, and his lower,
though momentarily stronger impulses or desires.
This, as Mr. Galton (49. See his remarkable
work on 'Hereditary Genius,' 1869, p. 349. The
Duke of Argyll ('Primeval Man,' 1869, p. 188)
has some good remarks on the contest in man's
nature between right and wrong.) has remarked,
is all the less surprising, as man has emerged
from a state of barbarism within a comparatively
recent period. After having yielded to
some temptation we feel a sense of dissatisfaction,
shame, repentance, or remorse, analogous