Efficiency without ethics is empty progress.

Every decision we make in forestry today will echo for generations to come.

There is an awful lot you can tell about a person by their shoes. Where they're going. Where they've been.

“唯一真正重要的是爱。”

数学的进步是通过不断质疑已建立的真理来实现的。

可持续发展不仅需要愿景，还需要具体行动。