Acting is a masochistic form ...

Acting is a masochistic form of exhibitionism. It is not quite the occupation of an adult.
 Laurence Olivier

Quotes from the same author

Of all the things I've done in life, directing a motion picture is the most beautiful. It's the most exciting and the nearest than an interpretive craftsman, such as an actor can possibly get to being a creator.
 Laurence Olivier
Striving for perfection is the greatest stopper there is. You'll be afraid you can't achieve it. It's your excuse to yourself for not doing anything. Instead, strive for excellence, doing your best.
 Laurence Olivier
What is acting but lying and what is good lying but convincing lying?
 Laurence Olivier
Acting, is not a profession for adults.
 Laurence Olivier
I am far from sure when I am acting and when I am not or, should I more frankly put it, when I am lying and when I am not. For what is acting but lying and what is good acting but convincing lying?
 Laurence Olivier