Victory awaits him who has everything in order. Luck, people call it. Defeat is certain for him who has neglected to take the necessary precautions in time. This is called bad luck.

I never did anything by accident, nor did any of my inventions come by accident; they came by work.

-- Thomas Edison

I came, I saw, I conquered.

-- Julius Caesar

No plan survives first contact with the enemy.

-- Carl von Clausewitz

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

-- Sun Tzu

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