I shall pass through this world but once. Any good, therefore, that I can do or any kindness I can show to any human being, let me do it now. Let me not defer it or neglect it, for I shall not pass this way again.
I'm probably wouldn't do anything differently if I had to do it again. Every little thing that happens to you, good and bad, becomes a little piece of the puzzle of who you become. Every successful person you read about - Warren Buffett, Bill Gates - they all say pretty much the same thing. 'Do what you love.' I know I did.
You cannot hold on to anything good. You must be continually giving - and getting. You cannot hold on to your seed. You must sow it - and reap anew. You cannot hold on to riches. You must use them and get other riches in return.
The most important thing, in anything you do, is always trying your hardest, because even if you try your hardest and it's not as good as you'd hoped, you still have that sense of not letting yourself down.
It's very true that you can be both selfless and selfish at the same time. What we tend towards, particularly in filmmaking, is this binary sort of, 'This is a good guy, this is a bad guy.' And I quite like the fact that life is a bit more complex than that.