There is no necessary connection between the desire to lead and the ability to lead, and even less the ability to lead somewhere that will be to the advantage of the led.

For the most part our leaders are merely following out in front; they do but marshal us the way that we are going.

The civilized man has a moral obligation to be skeptical. . . . Any man who for one moment abandons or suspends the questioning spirit has for that moment betrayed humanity.

Authors are magpies, echoing each other's words and seizing avidly on anything that glitters.

Freedom of speech and freedom of action are meaningless without freedom to think. And there is no freedom of thought without doubt.

We see what we want to see, and observation conforms to hypothesis.

There is wisdom in the selection of wisdom.