能源的真实成本必须同时考虑其生产和遗留影响。

To the man with only a hammer, every problem looks like a nail.

艺术不仅仅是关于美学；它是文化、历史和身份之间的对话。

Infinite responsibility is a pathological condition.

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.