This excerpt from one of Voltaire's poems:
Man is a stranger to his own research;
He knows not whence he comes, nor whither goes.
Tormented atoms in a bed of mud,
Devoured by death, a mockery of fate.
But thinking atoms, whose far-seeing eyes,
Guided by thought, have measured the faint stars,
Our being mingles with the infinite;
Ourselves we never see, or come to know.
pseudo