Great spirits have always encountered violent opposition from mediocre minds.

Most people say that it is the intellect which makes a great scientist. They are wrong: it is character.

It gives me great pleasure indeed to see the stubbornness of an incorrigible nonconformist warmly acclaimed.

You ask me if I keep a notebook to record my great ideas. I've only ever had one.

A table, a chair, a bowl of fruit and a violin what else does a man need to be happy?