Ace

“If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.”
― Sun Tzu, The Art of War

“Life is a series of pulls back and forth. You want to do one thing, but you are bound to do somehing else. Something hurts you, yet you know it shouldn't. You take certain things for granted, even when you know you should never take anything for granted.”
― Mitch Albom, Tuesdays with Morrie: An Old Man, a Young Man, and Life's Greatest Lesson

“I think; therefore I am.”
― Rene Descartes

“Every man has two deaths, when he is buried in the ground and the last time someone says his name. In some ways men can be immortal.”
― Ernest Hemingway