抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
The past is not behind us; it is within us.
真相很少是纯粹的，也从不简单。
If you want to solve big problems, start by asking the right questions.
每个人都重要，否则没有人重要。
诚信是信任的基石，而信任是任何成功关系的基础。