领导力是关于做出艰难的决定，而不仅仅是发号施令。

Light is the brush of God, painting the world every moment.

Never be afraid to take risks. The biggest rewards often come from the biggest risks.

The advancement of mathematics is due to those who are driven not by the desire for application but by the joy of discovery.

出自《海国图志·卷首》。地气和天时变化了，那么历史的体例也应随着时代的变化而变化。

所以，根基树立不牢的人，不要期望有茂盛的枝叶。 

物理定律必须以独立于坐标系选择的方式表述。

如果不到达印度，绝不向东返回一步。宁愿向西而死，怎能向东而生！