There's no such thing as a neutral image in our visual culture.

"Success is not final, failure is not fatal: It is the courage to continue that counts."

Success comes when preparation meets opportunity.

What is the use of running when we are not on the right road?

骄纵、傲慢、急躁、暴戾的人，不可与他交朋友。

粒子的概念只是一个近似，在经典极限下有效。