The only thing you absolutely have to know is the location of the library.

Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates to invention. It shocks us out of sheeplike passivity, and sets us at noting and contriving.

对做好自己的事感到满足，不必理会别人如何议论你。

科学是一段旅程，而非终点。

心灵如同冰山，浮出水面的仅占七分之一。