The final test of a leader is that he leaves behind him in other men the conviction and the will to carry on.

Love endures only when the lovers love many things together and not merely each other.

Men can know more than their ancestors did if they start with a knowledge of what their ancestors had already learned....That is why a society can be progressive only if it conserves its traditions.

Where all men think alike, no one thinks very much.

It requires wisdom to understand wisdom the music is nothing if the audience is deaf.

When all men think alike, no one thinks very much.

When men are brought face to face with their opponents, forced to listen and learn and mend their ideas, they cease to be children and savages and begin to live like civilized men. Then only is freedom a reality, when men may voice their opinions because they must examine their opinions.

Because the results are expressed in numbers, it is easy to make the mistake of thinking that the intelligence test is a measure like a foot ruler or a pair of scales. It is, of course, a quite different sort of measure. Intelligence is not an abstraction like length and weight; it is an exceedingly complicated notion - which nobody has yet succeeded in defining.

Where all think alike, no one thinks very much.