I tell you solemnly, that I have many times tried to become an insect. But I was not equal even to that. I swear, gentlemen, that to be too conscious is an illness — a real thorough-going illness.

Totally without hope one cannot live. To live without hope is to cease to live. Hell is hopelessness. It is no accident that above the entrance to Dante's hell is the inscription: "Leave behind all hope, you who enter here."

... you can never be sure of what has passed between husband and wife or lover and mistress.

Man, do not pride yourself on your superiority to the animals, for they are without sin, while you, with all your greatness, you defile the earth wherever you appear and leave an ignoble trail behind you -- and that is true, alas, for almost every one of us!

We are born dead, and we are becoming more and more contented with our condition. We are acquiring the taste for it.

It seems, in fact, as though the second half of a man's life is made up of nothing, but the habits he has accumulated during the first half.

Love all God’s creation, both the whole and every grain of sand. Love every leaf, every ray of light. Love the animals, love the plants, love each separate thing. If thou love each thing thou wilt perceive the mystery of God in all; and when once thou perceive this, thou wilt thenceforward grow every day to a fuller understanding of it: until thou come at last to love the whole world with a love that will then be all-embracing and universal.