But of the significance for human life of the impulses mentioned there
can be no question. What would the life of a man be if he could feel no
fear or repulsion? Could there be a development of knowledge in the
absence of curiosity? How long would the race endure if the parental
instinct were wholly lacking? What would become of a man who never
desired food? Could a human society of any sort exist if there were no
sympathy or tender feeling, no impulse to seek the company of other men?
It is men, such as they are, endowed with the qualities which distinguish
man, who associate themselves into communities, and the customs and laws
of such reflect the fundamental impulses in which they had their origin.
43. THE STUDY OF MAN'S INSTINCTS IMPORTANT.--That a careful study of
human nature is of the utmost importance to the moralist is palpable. He
must not prescribe for man a rule of conduct which it is not in man to
follow. He must not set before him, as inducements to actions, objects
which it is impossible for him to desire and, hence, to choose.
To be sure, the main traits of human nature were pretty well recognized
many centuries before the modern science of psychology had its birth. Had
they not been, man could not have had rational dealings with his fellow-
man; could not effectively have persuaded and threatened, rewarded and
punished, and, in short, set in motion all the machinery which is at the
service of one man when he wants to influence the conduct of another. But
moralists ancient and modern have made serious blunders through an
imperfect understanding of the impulses natural to man; and the modern
psychologist, without claiming to be a wholly original or an infallible
guide, may be of no little service in helping us to detect them.
Thus, it was possible for as shrewd an observer of man as Aristotle to
explain the affection of a man for his child by regarding it as an
extension of self-love, the child being, in a sense, a part of the
parent. [Footnote: _Ethics_, Book VIII, chapter xii.] Aristotle's
quaint explanation of the fact that maternal affection is apt to be
stronger than paternal is an error of a kindred nature. [Footnote:
_Ibid_., Book IX, chapter vii.] And the ancient egoists, [Footnote:
See the answer to Epicurus in the _Discourses of Epictetus_,
translated by LONG, London, 1890, pp. 69-70.] in setting before man their
selfish and anti-social ideal of human conduct, made their appeal, not to
the whole man, but only to a part of him. The normal man, whether savage
or civilized, whether ancient or modern, cannot desire a life filled only
with the objects which they set before him. Nor is the modern moralist,
or as he prefers to style himself, "immoralist," Nietzsche, [Footnote: A
sketch of Nietzsche's doctrine is given later, see chapter xxix.] guilty
of less gross a blunder. He rails at morality as commonly understood,
calling it "the morality of the herd," and he recommends isolation, the
repression of sympathy, and a contempt for one's fellows. To be sure, the
"herd" is a scornful, rhetorical expression,--what Bentham would have
called a "question-begging epithet,"--for men do not, properly speaking,
live in herds; but they do normally live in human societies of some sort,
and they have the instincts and impulses which fit them to do so. The
repression of such instincts and impulses does violence to their nature,
and he who advocates other than a social morality should advocate it for
some creature other than man. Man is a social creature, and, among the
objects of his desire and will, he must give a prominent place to some
which are distinctively social.
44. THE BEWILDERING MULTIPLICITY OF THE OBJECTS OF DESIRE, AND THE EFFORT
TO FIND AN UNDERLYING UNITY.--The mere enumeration of the characteristics