相对论是一种原理性理论,而非构造性理论。
真相可能是一把双刃剑,两面都伤人。
The only constant is change, continuing change, inevitable change, that is the dominant factor in society today.
森林不需要我们,而是我们需要森林。
森林面临的最大威胁不是砍伐,而是漠不关心。
The best way to help people is not to do things for them, but to help them do things for themselves.
帮助他人的最好方式不是为他们做事,而是帮助他们为自己做事。