You can be sincere and still be stupid.

And what's strange, what would be marvelous, is not that God should really exist; the marvel is that such an idea, the idea of the necessity of God, could enter the head of such a savage, vicious beast as man.

Reason is the slave of passion.

I cannot understand why the world is arranged as it is.

In a morbid condition of the brain, dreams often have a singular actuality, vividness, and extraordinary semblance of reality. At times monstrous images are created, but the setting and the whole picture are so truth-like and filled with details so delicate, so unexpectedly, but so artistically consistent, that the dreamer, were he an artist like Pushkin or Turgenev even, could never have invented them in the waking state. Such sick dreams always remain long in the memory and make a powerful impression on the overwrought and deranged nervous system.

Suffering is part and parcel of extensive intelligence and a feeling heart.

Two times two will be four even without my will. Is that what you call man's free will?