Authors:

There are two kinds of actors -- one sits in a dressing room waiting for his call and the other gets out into the business and polishes his craft by absorbing everything. I don't know enough, I'll never learn everything I need to learn. When a guy thinks he's already learned it, he can only go backwards.

Clint Eastwood, Kathie Coblentz (1999). “Clint Eastwood: Interviews”, p.6, Univ. Press of Mississippi
There are two kinds of actors -- one sits in a dressing room waiting for his call and the other gets out into the business and polishes his craft by absorbing everything. I don't know enough, I'll never learn everything