How often we sin, how much we deceive, and all for what?... All will end in death, all!

I have learned what must be, and therefore have come to see the whole horror of what is.

In order to understand, observe, deduce, man must first be conscious of himself as alive.

A human can be healthy without killing animals for food.

Well, pray if you like, only you'd do better to use your judgment.

Then he thought himself unhappy, but happiness was all in the future; now he felt that the best happiness was already in the past.

I was now prepared to accept any faith so long as it did not demand a direct denial of reason, which would have been a deceit.