解释：货卖完了才知道不足，是由于不懂得计量；事情结束了才知道有余，是由于不懂得调节。
The true test of our work comes decades later, when it's still being loved and used.
风格是非常个人的东西。它与时尚无关。时尚转瞬即逝，风格永存。
Every breakthrough starts with a question.