The world is a great play, and we are the actors.
I'm not gonna be one of those people who has to look back and say, 'I should have done that.'
A forest managed with care is a forest that lasts.
Psychology must be a science of functions, not just a science of facts.
书籍是最安静、最恒久的朋友;它们是最易接近、最明智的顾问,也是最耐心的老师。