I'm terrible at metaphors or analogies. I don't know the difference, actually, ... For me, acting is like your dad teaching you to ride a bicycle. You feel totally vulnerable at first. You imagine yourself getting hurt, and the only thing that prevents you from crashing is your dad is running after you, holding on to the back of your seat. You keep looking over your shoulder at him, and he's going, 'You're doing it, kid.' And then, all of a sudden, you're, like, 'Why are you still holding on, Dad? Let go.'

Joaquin Phoenix