Men build society and society builds men.

Men build society and society builds men.

Teachers must learn how to teach ... they need only to be taught more effective ways of teaching.

A disappointment is not generally an oversight. It might just be the best one can do the situation being what it is. The genuine error is to quit attempting.

Do not intervene between a person and the consequences of their own behavior.

At this very moment enormous numbers of intelligent men and women of goodwill are trying to build a better world. But problems are born faster than they can be solved.

The problem of far greater importance remains to be solved. Rather than build a world in which we shall all live well, we must stop building one in which it will be impossible to live at all.