Either push your limits or die.

Everyone wants to learn how to win, but no one wants to learn how to accept defeat.

Put 'going the extra mile' to work as part of one's daily habit

Because one does not want to be disturbed, to be made uncertain, he establishes a pattern of conduct, of thought, a pattern of relationships to man. He then becomes a slave to the pattern and takes the pattern to be the real thing.

If you want to learn to swim jump into the water. On dry land no frame of mind is ever going to help you.

Notice that the stiffest tree is most easily cracked, while the bamboo or willow survives by bending with the wind.

A man strikes you, make him bleed. He makes you bleed, you break his bones. He breaks your bones, kill him. Being hit is inevitable, strike back twice as hard.