Acting: An art which consists of keeping the audience from coughing.
Acting is merely the art of keeping a large group of people from coughing.
In music, the punctuation is absolutely strict, the bars and rests are absolutely defined. But our punctuation cannot be quite strict, because we have to relate it to the audience. In other words we are continually changing the score.
Acting is the ability to dream on cue.
Dead? No excuse for laying off work.
Acting is a strange business; one day it's there, and the next day nowhere to be seen.