I do value my work awfully; but in reality only consider this: all this world of ours is nothing but a speck of mildew, which has grown up on a tiny planet. And for us to suppose we can have something great - ideas, work - it's all dust and ashes.

Error is the force that welds men together; truth is communicated to men only by deeds of truth.

What I think about vivisection is that if people admit that they have the right to take or endanger the life of living beings for the benefit of many, there will be no limit to their cruelty.

Smiling with pleasure, they went through their memories, not sad, old people's memories, but poetic, youthful ones, those impressions from the very distant past where dream merges with reality, and they laughed softly, rejoicing at something.

The Kingdom of God is Within You.

Man discovers truth by reason only, not by faith.

Love alone is the only reasonable activity or pursuit of humankind....Fo r Love not only annihilates our fear of meaninglessness but empowers us to seek the happiness of others. And this indeed is our greatest happiness.