Truth is on the march, and nothing will stop it.

I have but one passion: to enlighten those who have been kept in the dark, in the name of humanity which has suffered so much and is entitled to happiness. My fiery protest is simply the cry of my very soul.

If you shut up truth and bury it under the ground, it will but grow, and gather to itself such explosive power that the day it bursts through it will blow up everything in its way.

Did science promise happiness? I do not believe it. It promised truth, and the question is to know if we will ever make happiness with truth.

When lovers kiss on the cheeks, it is because they are searching, feeling for one another's lips. Lovers are made by a kiss.

She might have liked to try to strangle him with those slender fingers of hers, but she wanted to make a job of it and this great patience with which she waited for her claws to grow was in itself a form of enjoyment.

The fate of animals is of greater importance to me than the fear of appearing ridiculous; it is indissolubly connected with the fate of men.