I do not rebel against my God, I simply do not accept his world.

We are citizens of eternity.

Through error you come to the truth! I am a man because I err! You never reach any truth without making fourteen mistakes and very likely a hundred and fourteen.

Man is bound to lie about himself

Let us first fulfill Christ's injunction ourselves and only then venture to expect it of our children. Otherwise we are not fathers, but enemies of our children, and they are not our children, but our enemies, and we have made them our enemies ourselves.

I can see the sun, but even if I cannot see the sun, I know that it exists. And to know that the sun is there - that is living.

There is something at the bottom of every new human thought, every thought of genius, or even every earnest thought that springs up in any brain, which can never be communicated to others, even if one were to write volumes about it and were explaining one's idea for thirty-five years; there's something left which cannot be induced to emerge from your brain, and remains with you forever; and with it you will die, without communicating to anyone perhaps the most important of your ideas.