The greatest challenge to any thinker is stating the problem in a way that will allow a solution.

如果你面对去年的自己不感到尴尬的话，你目前可能学习得不够努力。

The journey of scientific discovery is as important as the destination.

To understand is to invent.

【大意】一个国家如果没有正义，即使再强大也定会灭亡。一个人如果没有良善的志趣，即使勇猛也必会遭遇挫伤。