A professional gives everything precisely when things are most difficult.

The moment you think you're tired, you've already lost. The body follows the spirit.

The more difficult the victory, the greater the happiness in winning.

-- Pelé

I fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times.

-- Bruce Lee

If you know the enemy and know yourself, you need not fear the result of a hundred battles.

-- Sun Tzu

I shall dedicate myself utterly, giving everything until death claims me.

-- Zhuge Liang

A general must be cautious in five things: reason, preparation, decisiveness, discipline, and restraint.

-- Wu Qi

He who plans more, wins. He who plans less, loses.

-- Mōri Motonari