It is horrible to see everything that one detested in the past coming back wearing the colors of the future.

We must watch over our modesty in the presence of those who cannot understand its grounds.

Certain brief sentences are peerless in their ability to give one the feeling that nothing remains to be said.

Falsity cannot keep an idea from being beautiful; there are certain errors of such ingenuity that one could regret their not ranking among the achievements of the human mind.

The books one has written in the past have two surprises in store: one couldn't write them again, and wouldn't want to.

Truth is always served by great minds, even if they fight it.

When a scientist is ahead of his times, it is often through misunderstanding of current, rather than intuition of future truth. In science there is never any error so gross that it won't one day, from some perspective, appear prophetic.