Every politician, clergyman, educator, or physician, in short, anyone dealing with human individuals, is bound to make grave mistakes if read more

Every politician, clergyman, educator, or physician, in short, anyone dealing with human individuals, is bound to make grave mistakes if he ignores these two great truths of population zoology: (1) no two individuals are alike, and (2) both environment and genetic endowment make a contribution to nearly every trait.

Peace is a natural effect of trade.

Peace is a natural effect of trade.

Whenever the government of the United States shall break up, it will probably be in consequence of a false direction read more

Whenever the government of the United States shall break up, it will probably be in consequence of a false direction having been given to publick opinion. This is the weak point of our defenses, and the part to which the enemies of the system will direct all their attacks. Opinion can be so perverted as to cause the false to seem the true; the enemy, a friend, and the friend, an enemy; the best interests of the nation to appear insignificant, and trifles of moment; in a word, the right the wrong, and the wrong the right.

Unbounded morality ultimately becomes counterproductive even in terms of the same moral principles being sought. The law of diminishing returns read more

Unbounded morality ultimately becomes counterproductive even in terms of the same moral principles being sought. The law of diminishing returns applies to morality.

We know that words cannot move mountains, but they can move the multitude; and men are more ready to fight read more

We know that words cannot move mountains, but they can move the multitude; and men are more ready to fight and die for a word than for anything else. Words shape thought, stir feeling, and beget action; they kill and revive, corrupt and cure. The "men-of-words"- priests, prophets, intellectuals- have played a more decisive role in history than military leaders, statesmen, and businessmen.

The unpredictability inherent in human affairs is due largely to the fact that the by-products of a human process are read more

The unpredictability inherent in human affairs is due largely to the fact that the by-products of a human process are more fateful than the product.

The rout is Folly's circle, which she draws
With magic wand. So potent is the spell,
That read more

The rout is Folly's circle, which she draws
With magic wand. So potent is the spell,
That none decoy'd into that fatal ring,
Unless by Heaven's peculiar grace, escape.
There we grow early gray, but never wise.

I have only a small flickering light to guide me in the darkness of a thick forest. Up comes a read more

I have only a small flickering light to guide me in the darkness of a thick forest. Up comes a theologian and blows it out.

Never underestimate the power of human stupidity.

Never underestimate the power of human stupidity.