Security is always excessive until it's not enough.
每个词都是一个世界，每行诗都是一个宇宙。
做出伟大工作的唯一途径是热爱你所做的事。
The sidelines are not where you want to live your life. The world needs you in the arena.
The secret of life is not just to survive, but to thrive with passion, compassion, humor, and style.
学习数学的最好方法就是做数学。
The source of all suffering is attachment.
The habit of searching for the positive in everything will transform your life.