"El ejemplo es la escuela de la humanidad, y no aprenderán en ninguna otra."

“When you repeat a mistake, it is not a mistake anymore: it is a decision.”

“Nothing in the world is ever completely wrong. Even a stopped clock is right twice a day.”

“To know your enemy, you must become your enemy.”

“In the end it is about trying, failing and improving.”

“I care not what others think of what I do, but I care very much about what I think of what...”

“Be brave. Take risks. Nothing can substitute experience.”

“Do I not destroy my enemies when I make them my friends?”

“You have to be willing to be misunderstood if you're going to innovate.”

“Kites rise highest against the wind, not with it.”

“The voice of the intellect is a soft one, but it does not rest until it has gained a hearing.”

“There's two buttons I never like to hit: that's panic and snooze.”

“If you want to know what a man's like, take a good look at how he treats his inferiors, no...”