"The moment you feel like giving up, think about why you held on for so long."

The only limits you have are the limits you believe.

The beauty of mathematics is that it is one of the few areas of human endeavor where absolute truth can be known.

语言中最危险的短语是：“我们一直都是这么做的。”

The real moat is the ability to continuously create user value.

"I am learning to run through the rain and not wait for the storm to pass."

好的政策需要健全的理论和实证验证。

We are healed of a suffering only by experiencing it to the full.

Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.