xists, it is possible for love to spring up. Love of this
kind makes them blind to everything; and if it leads to marriage it is a
very unhappy one.

And now let us more thoroughly investigate the matter. Egoism is a
quality so deeply rooted in every personality that it is on egotistical
ends only that one may safely rely in order to rouse the individual to
activity.

To be sure, the species has a prior, nearer, and greater claim on the
individual than the transient individuality itself; and yet even when
the individual makes some sort of conscious sacrifice for the
perpetuation and future of the species, the importance of the matter
will not be made sufficiently comprehensible to his intellect, which is
mainly constituted to regard individual ends.

Therefore Nature attains her ends by implanting in the individual a
certain illusion by which something which is in reality advantageous to
the species alone seems to be advantageous to himself; consequently he
serves the latter while he imagines he is serving himself. In this
process he is carried away by a mere chimera, which floats before him
and vanishes again immediately, and as a motive takes the place of
reality. _This illusion is instinct_. In most instances instinct may be
regarded as the sense of the species which presents to the will whatever
is of service to the species. But because the will has here become
individual it must be deceived in such a manner for it to discern by the
sense of the _individual_ what the sense of the species has presented to
it; in other words, imagine it is pursuing ends concerning the
individual, when in reality it is pursuing merely general ends (using
the word general in its strictest sense).

Outward manifestation of instinct can be best observed in animals, where
the part it plays is most significant; but it is in ourselves alone that
we can get to know its internal process, as of everything internal. It
is true, it is thought that man has scarcely any instinct at all, or at
any rate has only sufficient instinct when he is born to seek and take
his mother's breast. But as a matter of fact man has a very decided,
clear, and yet complicated instinct--namely, for the selection, both
earnest and capricious, of another individual, to satisfy his instinct
of sex. The beauty or ugliness of the other individual has nothing
whatever to do with this satisfaction in itself, that is in so far as it
is a matter of pleasure based upon a pre