We are not in the coffee business serving people, but in the people business serving coffee.

The beauty of mathematics only shows itself to more patient followers.

Retire into yourself and ask yourself this question: Must I write？ If the answer is yes， then you must keep writing.

Never stop learning, because the world never stops changing.

The pleasure isn't in owning the person. The pleasure is this. Having another contender in the room with you.

未来不是命中注定的。没有保证。所以，要主动承担成年人的责任。要有目的性。