The search for a theory of everything is one of the most exciting and challenging quests in modern physics.

"The best fans in the world are the One Direction fans."

You are not the opinion of somebody who doesn’t know you or care about you.

心灵是将挑战转化为机会的系统。

释义：船装载过重就会沉没，人欲望太强就会损害生命。劝诫人要节制自己的欲望。