The only existence we conceive is the existence of sensible things.

Leadership is about making tough decisions today that will benefit everyone tomorrow.

The most important thing is to focus on the customer experience.

一个数学家的真正价值在于他们留下的问题。

The most important property of a program is whether it accomplishes the intention of its user.

有时候你必须先迷失自己，才能找到任何东西。