A leader should demonstrate his thoughts and opinions through his actions, not through his words.

The Mongols consumed a steady diet of meat, milk, yogurt, and other dairy products, and they fought men who lived on gruel made from various grains. The grain diet of the peasant warriors stunted their bones, rotted their teeth, and left them weak and prone to disease. In contrast, the poorest Mongol soldier ate mostly protein, thereby giving him strong teeth and bones.

The first key to leadership was self-control, particularly the mastery of pride, which was something more difficult, he explained, to subdue than a wild lion and anger, which was more difficult to defeat than the greatest wrestler. He warned them that "if you can't swallow your pride, you can't lead.

The first key to leadership is self-control.

A leader should demonstrate his thoughts and opinions through his actions, not through his words.

Victory did not come to the one who played by the rules; it came to the one who made the rules and imposed them on his enemy.

If you can't swallow your pride, you can't lead. Even the highest mountain had animals that step on it.