"Once a day, especially in the early years of life and study, call yourselves to an account what new ideas, what new proposition or truth you have gained, what further confirmation of known truths, and what advances you have made in any part of knowledge."

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I have studied the enemy all my life. I have read the memoirs of his generals and his leaders. I have even read his philosophers and listened to his music. I have studied in detail the account of every damned one of his battles. I know exactly how he will react under any given set of circumstances. And he hasn't the slightest idea of what I'm going to do. So when the time comes, I'm going to whip the hell out of him.

— George S. Patton