幸福不是偶然发生的事情。它不是好运或随机机会的结果。它不是金钱可以买到或权力可以命令的东西。它不取决于你外部发生的事情，而取决于你内部发生的事情。

The best way to learn mathematics is to do mathematics.

People can be divided into these types: strangers, acquaintances, familiar people, friends, and close friends. True friendship isn't about compliments to your face, but whether you're mentioned when they talk about friends behind your back.

创新不仅仅是创造新产品；而是重新思考如何利用资源来建设可持续的未来。

"We all have an unsuspected reserve of strength inside that emerges when life puts us to the test."

旋律是音乐的本质。