When everyone thinks the same, nobody is thinking.

The decay of decency in the modern age, the rebellion against law and good faith, the treatment of human beings as things, as the mere instruments of power and ambition, is without a doubt the consequence of the decay of the belief in man as something more than an animal animated by highly conditioned reflexes and chemical reactions. For, unless man is something more than that, he has no rights that anyone is bound to respect, and there are no limitations upon his conduct which he is bound to obey.

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.

The self-evident truth which makes men invincible is that inalienably they are inviolable persons.

No mariner ever enters upon a more uncharted sea than does the average human being born in the 20th century. Our ancestors know their way from birth through eternity; we are puzzled about the day after tomorrow.

The opposition is indispensable. A good statesman, like any other sensible human being, always learns more from his opposition than from his fervent supporters.

The justification of majority rule in politics is not to be found in its ethical superiority.