A happy person is not a person in a certain set of circumstances, but rather a person with a certain set of attitudes.
The true joy of mathematics lies in the act of discovery, not just the result.
家中闲坐无聊,不妨想想,有人在为生活而辛劳;官位不能飞黄腾达,想想仍有许多才能好的读书人,人都老了还是青衣。
The space between the words and the pictures is where the magic happens.