You wanna fly, you got to give up the shit that weighs you down.
Psychology is concerned with the what and how of mental life, not the why.
The duty of a true patriot is to protect his country from its government.
柴油发动机是当今已知效率最高的原动机。
指感情所专注的，正是我们这些人。
挑战是伪装的机遇，拥抱它们并变得更强大。