The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

The art of leadership is saying no, not yes. It is very easy to say yes.

开始的方法是停止空谈，开始行动。

Some of the biggest cases of mistaken identity are among intellectuals who have trouble remembering that they are not God.

The most important single aspect of software development is to be clear about what you are trying to build.

数学推理可以相当系统地看作是两种能力的结合运用，我们可以称之为直觉和独创性。

Art is a way of seeing the world differently.

The only limit to our realization of tomorrow will be our doubts of today.