Belief

"The power of belief, in a sense -- it's one of the strongest of all," he said. "And like religion, if you strongly believe in something, it comes true and it becomes a reality. In acting, I find that as well. If you believe it, you discover a truth and it's quite spiritual.... Along that path, in discovering that character, you discover a lot about yourself."  

- 1994 interview with Heath Ledger