"The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence."

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Don't listen to anyone who tells you that you can't do this or that. That's nonsense. Make up your mind, you'll never use crutches or a stick, then have a go at everything. Go to school, join in all the games you can. Go anywhere you want to. But never, never let them persuade you that things are too difficult or impossible.

— Douglas Bader