It is not the nature of magic to be either good or evil, but it is the nature of those who use it.

如果人们不相信你在乎他们，你就无法领导他们。

The greatest education in the world is watching the masters at work.

Technology can help us monitor forests, but wisdom teaches us how to preserve them.

绝对确定性的假设是每一项科学研究的根本基础。