Security is not an add-on feature but the foundation.

The law isn't justice. It's a very imperfect mechanism. If you press exactly the right buttons and are also lucky, justice may show up in the answer.

对于任何事务，要改变它就要先接受它。谴责不会解放而只会压迫。

理解布莱克-斯科尔斯模型的关键在于认识到它是基于风险中性世界的概念，在这个世界中投资者对风险漠不关心。

The magic, the wonder, the mystery and the innocence of a child's heart are the seeds of creativity that will heal the world.

Memory is identity... You are what you have done; what you have done is in your memory; what you remember defines who you are.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。