What can be shown, cannot be said.

成功的衡量标准不仅仅是利润，还包括积极的影响。

The power of mathematics is in its abstraction, allowing us to see patterns and connections that are not immediately obvious.

You can't go through life with a catcher's mitt on both hands. You need to be able to throw something back.

Life is not like cooking, where you can prepare all the ingredients before you start cooking.