戒烟很容易，我已经戒了一千次。
Giving up smoking is the easiest thing in the world. I know because I’ve done it thousands of times.
The difference between perseverance and obstinacy is that one comes from a strong will, and the other from a strong won’t.
人类的理解一旦采纳了一个观点，就会倾向于将其他事物引向支持和一致。
Legal rules are not self-executing; they require human agency to be effective.
The personality of the teacher is the cornerstone of education.