A true friend of mankind whose heart has but once quivered in compassion over the sufferings of the people, will understand and forgive all the impassable alluvial filth in which they are submerged, and will be able to discover the diamonds in the filth.

Can a man possessing conciousness ever really respect himself?

There is nothing more alluring to man than freedom of conscience, but neither is there anything more agonizing.

To think too much is a disease.

It's the great mystery of human life that old grief passes gradually into quiet tender joy.

The most pressing question on the problem of faith is whether a man as a civilized being can believe in the divinity of the Son of God, Jesus Christ, for therein rests the whole of our faith.

What is hell?...The suffering that comes from the consciousness that one is no longer able to love.