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.

The fear of life, the fear of burdens and of duties, of annoyances and of catastrophes! The fear of life, which makes us, through dread of its sufferings, refuse its joys. Ah! I tell you, this cowardliness enrages me; I cannot forgive it. We must live - live a complete life - live all our life.

Up to this day, there has been no proof of the existence of any intelligence other than the human.

People like comfort; that's natural. But as for making money simply for the sake of making it, and giving yourself far more trouble and anxiety to gain it than you can ever get pleasure from it when it's gained, why, as for me, I'd rather sit still and cross my arms.

If you ask me what I came into this life to do, I will tell you: I came to live out loud.

I defy you to find any real will, any reasoning force, outside of life. And everything is there; there is, in the world, no other will than this force which impels everything to life, a life even broader and higher.