心理学家必须是一个细致的观察者。
The psychologist must be a meticulous observer.
人类行为是自然的一部分，可以通过自然科学的方法来研究。
The highest form of theory is the ability to simplify complex things into simple and clear principles.
住酒店时，把所有的东西都放在显眼的地方，不要放在抽屉里，全部集中到一个地方。这样你就不会落下任何东西。如果你需要把充电器之类的东西放在一边，在它旁边放几件其他的大件物品，你落下三样东西的可能性比落下一件要小很多。
The problem isn't that Johnny can't read. The problem isn't even that Johnny can't think. The problem is that Johnny doesn't know what thinking is; he confuses it with feeling.
My name is Usain Bolt and I am the fastest man in the world.