into the essence of things, nor to recur to first principles--but it is
given him, to have reason, to have honesty, to ingenuously allow he is
ignorant of that which he cannot know, and not to substitute
unintelligible words, absurd suppositions, for his uncertainty. Thus, we
say to those, who to solve difficulties far above their reach, pretend
that the human species descended from a first man and a first woman,
created diversely according to different creeds;--that we have some
ideas of Nature, but that we have none of creation;--that the human mind
is incapable of comprehending the period when all was nothing;--that to
use words we cannot understand, is only in other terms to acknowledge
our ignorance of the powers of Nature;--that we are unable to fathom the
means by which she has been capacitated to produce the phenomena we
behold.

Let us then conclude, that man has no just, no solid reason to believe
himself a privileged being in Nature; because he is subject to the same
vicissitudes, as all her other productions. His pretended prerogatives
have their foundation in error, arising from mistaken opinions
concerning his existence. Let him but elevate himself by his thoughts
above the globe he inhabits, he will look upon his own species with the
same eyes he does all other beings in Nature: He will then clearly
perceive that in the same manner that each tree produces its fruit, by
reason of its energies, in consequence of its species: so each man acts
by reason of his particular energy; that he produces fruit, actions,
works, equally necessary: he will feel that the illusion which he
anticipates in favour of himself, arises from his being, at one and the
same time, a spectator and a part of the universe. He will acknowledge,
that the idea of excellence which he attaches to his being, has no other
foundation than his own peculiar interest; than the predilection he has
in favour of himself--that the doctrine he has broached with such