He who wants to persuade should put his trust not in the right argument, but in the right word. The power of sound has always been greater than the power of sense.

Certain streets have an atmosphere of their own, a sort of universal fame and the particular affection of their citizens. One of such streets is the Cannebiere, and the jest: "If Paris had a Cannebiere, it would be a little Marseilles" is the jocular expression of municipal pride. I, too, I have been under the spell. For me it has been a street leading into the unknown.

The ethical view of the universe involves us in so many cruel and absurd contradictions that I have come to suspect that the aim of creation cannot be ethical at all.

Do not talk to me of Archimedes' lever. He was an absent-minded person with a mathematical imagination. Mathematics commands my respect, but I have no use for engines. Give me the right word and the right accent and I will move the world.

She feared the unknown as we all do, and her ignorance made the unknown infinitely vast.

Some great men owe most of their greatness to the ability of detecting in those they destine for their tools the exact quality of strength that matters for their work.

Your strength is just an accident owed to the weakness of others.