Cherish those who seek the truth but beware of those who find it.
Where there is friendship, there is our natural soil.
I should like to lie at your feet and die in your arms.
There is an astonishing imagination, even in the science of mathematics. ... We repeat, there was far more imagination in the head of Archimedes than in that of Homer.
The instinct of a man is to pursue everything that flies from him, and to fly from all that pursue him.
Beware of the words "internal security," for they are the eternal cry of the oppressor.