One lives one's life under constant tension, until it's time to go for good

The process of scientific discovery is, in effect, a continual flight from wonder.

The content of scientific theory itself offers no moral foundation for the personal conduct of life.

I don't need to know everything, I just need to know where to find it, when I need it

Conventional words or other signs have to be sought for laboriously only in a second stage, where the associative play already referred to is sufficiently established and can be reproduced at will.

An empty stomach is not a good political adviser.

As an elderly man, I have remained estranged from the society here.