Gene Kelly in Singin' in the Rain (1952)
ACTING (in a Leading Role) : Maybe I'm too spontaneous, too genuine in my attitude, abrupt in my demonstrations, or 'straight-forward' in my interactions with people, you know "that's the way I am, don't ever try to change me"... and I guess I should learn how to put up a facade, to inject some 'social/positive hypocrisy' in my behavior. They say the word 'Personality' comes from the Latin word for 'Mask', well, I should mask myself a little bit more.
(by the way, did you know Gene Kelly had a very high fever when he did that legendary one-take? well, that's the kind of talent we're speaking of)