Our true nature cannot be found in books and academic studies

because our true nature is before speech and words. It is before thinking. If you find our before-thinking point, then it is possible to attain your true self. A long time ago, Descartes said, "I think, therefore I am." This is where philosophy begins. But if you are not thinking, what? This is where Zen practice begins.

Zen Master Seung Sahn