成功的最佳途径是踩着机会的阶梯往上爬。
The ladder of success is best climbed by stepping on the rungs of opportunity.
Our highest endeavor must be to develop free human beings who are able of themselves to impart purpose and direction to their lives.
如果你不犯错，说明你解决的问题还不够难。
你说的话有什么益处呢？如果没有益处还要说，就是白费口舌。