Be suspicious of people who have, or crave, power. Never, ever go near power. Don't become friends with anyone who has real power. It's dangerous.
If it can be written, or thought, it can be filmed.
There are few things more fundamentally encouraging and stimulating than seeing someone else die.
The destruction of this planet would have no significance on a cosmic scale.
I do not always know what I want, but I do know what I don't want.
The director's job is to know what emotional statement he wants a character to convey in his scene or his line, and to exercise taste and judgment in helping the actor give his best possible performance.