The best way to overcome fear is to face it.

数学不是一项观赏性运动。

The mystery of the room is in the play of light.

弟子不必不如师，师不必贤于弟子。弟子超过老师，是很正常的事情，这也是正是老师所希望的。

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.