The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.

成功不是偶然的，它是选择、坚持、学习、牺牲，以及最重要的，对所做之事的热爱。

You are the only real obstacle in your path to a fulfilling life.

The most powerful art is often the most humble.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.