Cherish the questions, for the answers keep changing.
Information is not knowledge.
When a man is sufficiently motivated, discipline will take care of itself.
Blind belief in authority is the greatest enemy of truth.
Everything has changed, except our way of thinking.
I consider it important, indeed urgently necessary, for intellectual workers to get together, both to protect their own economic status and, also, generally speaking, to secure their influence in the political field.