Nothing inspires more reverence and awe in me than an old man who knows how to change his mind.

To know the brain...is equivalent to ascertaining the material course of thought and will, to discovering the intimate history of life in its perpetual duel with external forces.

Nothing inspires more reverence and awe in me than an old man who knows how to change his mind.

As long as our brain is a mystery, the universe, the reflection of the structure of the brain will also be a mystery.

Intellectual work is an act of creation. It is as if the mental image that is studied over a period of time were to sprout appendages like an ameba—outgrowths that extend in all directions while avoiding one obstacle after another—before interdigitating with related ideas.

What a cruel irony of fate, to pair together, like Siamese twins united by the shoulders, scientific adversaries of such contrasting character!

Physical pain is easily forgotten, but a moral chagrin lasts indefinitely.