生命太珍贵,不能浪费在后悔上。
我是一个斗士,我用消极情绪来激发内心的斗志。
People don't buy what you do; they buy why you do it.
The unity of mathematics is not an illusion but a reality waiting to be uncovered.
Innovation is not imagination out of thin air, but based on a deep understanding of user needs.