Read not to contradict and confute； nor to believe and take for granted； nor to find talk and discourse； but to weigh and consider.
绝不能为了速度或成本而牺牲质量。
The worst pain a man can suffer is to have insight into much and power over nothing.
The study of quantum gravity is essential for understanding the early universe.
种树的最佳时间是20年前；第二好的时间就是现在。
我写歌的时候，常常会哭。
If everyone is honest, it is natural to be honest.