Confidence was everything. But in order to possess that confidence, you had to test yourself and put yourself on the line. It doesn’t come from osmosis, out of the air. It comes from consistently going over the visualization in your mind to help you develop the confidence that you want to possess.

Mike Tyson Undisputed Truth: My Autobiography
Also known as: Iron Mike Tyson, Iron Mike
English
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About Mike Tyson

"Iron" Mike Tyson (born June 30, 1966, in Brooklyn, New York) is a former American heavyweight boxing champion.

Biography information from Wikiquote

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