不要一直犯同样的错误;尝试犯些新的错误。
一个人需要相当的知识才能意识到自己的无知程度。
饥饿和贫困是世界上许多动荡和苦难的根本原因。
The success of any political system depends on its ability to deliver both prosperity and justice.
The best quarries don't just extract value; they create it through regeneration.