When I was at drama school, I wanted to change the world, and thought I had some great wisdom to impart to people about humanity. Now that I'm older, I know enough to realise that I know nothing at all.
Nobody really thinks who does not abstract from that which is given, who does not relate the facts to the factors which have made them, who does not in his mind undo the facts. Abstractness is the very life of thought, the token of its authenticity.