问题不在于事物是否存在，而在于它是否具有能够在没有我们的情况下存在的本质。

User needs are both the starting point and the end point of business.

The power of abstraction is that it allows us to reason about systems at a higher level, without getting bogged down in the details.

Science is a way of thinking much more than it is a body of knowledge.

每一次挑战都是伪装的机遇。

悲伤是爱的影子。

Technology has no boundaries, but its application must have direction.

预测未来的最好方法就是创造未来。