Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it.
古代以天下为主体，君主为客体，君主一生所经营的，都是为了天下。
Love takes up where knowledge leaves off.
The best preparation for tomorrow is doing your best today.
To teach mathematics is to inspire the next generation of thinkers and problem solvers.
人类是一种非常奇特的生物。