需要
Educate the children， and it won't be necessary to punish men.
The oldest， shortest words—'yes' and 'no'—are those which require the most thought.
A good world needs knowledge， kindliness， and courage； it does not need a regretful hankering after the past or a fettering of the free intelligence by the words uttered long ago by ignorant men.
The study of truth requires a considerable effort - which is why few are willing to undertake it out of love of knowledge - despite the fact that God has implanted a natural appetite for such knowledge in the minds of men.
Three things are necessary for the salvation of man: to know what he ought to believe； to know what he ought to desire； and to know what he ought to do.
Social progress requires the organic combination of individual freedom and social responsibility.
Economic development requires a stable legal environment.
