"Artistic self-indulgence is the mark of an amateur. The temptation to make scenes, to appear late, to call in sick, not to meet deadlines, not to be organized, is at heart a sign of your own insecurity and at worst the sign of an amateur."

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When you're seventeen to early twenties, that's the time you're trying to work out who you are. If you're trying to make some kind of artistic or creative impact, that's the age when you start to figure out how to do that.

— Daniel Radcliffe