A healthy nature needs no God or immortality

What reason, like the careful ant, draws laboriously together, the wind of accident sometimes collects in a moment.

To one, science is an exalted goddess; to another it is a cow which provides him with butter.

No, no! I do nature injustice. She gave us inventive faculty, and set us naked, and helpless on the shore of this great ocean,--the world; swim those who can, the heavy may go to the bottom.

I am my own heaven and hell!

It would be necessary that they should be already sages to love wisdom...

I follow my heart, for I can trust it.