The elegance of a mathematical proof is in its simplicity and clarity.

Welcome, O life! I go to encounter for the millionth time the reality of experience and to forge in the smithy of my soul the uncreated conscience of my race.

We are all visitors to this time, this place. We are just passing through. Our purpose here is to observe, to learn, to grow, to love... and then we return home.

怯懦囚禁灵魂，希望还你自由。

真正的记忆艺术是注意力的艺术。