The Mongols consumed a steady ...

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.
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 Jack Weatherford

Quotes from the same author

In American terms, the accomplishment of Genghis Khan might be understood if the United States, instead of being created by a group of educated merchants or wealthy planters, had been founded by one of its illiterate slaves, who, by sheer force of personality, charisma, and determination, liberated America from foreign rule, united the people, created an alphabet, wrote the constitution, established universal religious freedom, invented a new system of warfare, marched an army from Canada to Brazil, and opened roads of commerce in a free-trade zone that stretched across the continents.
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 Jack Weatherford
If you can't swallow your pride, you can't lead. Even the highest mountain had animals that step on it.
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 Jack Weatherford
A leader should demonstrate his thoughts and opinions through his actions, not through his words.
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 Jack Weatherford