做出伟大工作的唯一方法就是热爱你所做的事。

科学是个美妙的东西——如果无须靠它维生的话。

Sustainability is not a choice anymore; it's a necessity for survival in today's world.

I love to think of nature as an unlimited broadcasting station, through which God speaks to us every hour, if we will only tune in.

In a state, the liberty of one citizen is a menace to the others.

在一个真正属于孩子的地方，孩子会尽力去注意自己的举止，控制自己的行为。