In New England they once thought blackbirds useless, and mischievous to the corn. They made efforts to destroy them. The consequence was, the blackbirds were diminished; but a kind of worm, which devoured their grass, and which the blackbirds used to feed on, increased prodigiously; then, finding their loss in grass much greater than their saving in corn, they wished again for their blackbirds.

The noblest question in the world is: 'What good may I do in it?'

"We hold these truths to be sacred and undeniable" in a draft of the Declaration of Independence changes it instead into an assertion of rationality. The scientific mind of Franklin drew on the scientific determinism of Isaac Newton and the analytic empiricism of David Hume and Gottfried Leibniz. In what became known as "Hume's Fork" the latters' theory distinguished between synthetic truths that describe matters of fact, and analytic truths that are self-evident by virtue of reason and definition.

Experience keeps a dear school, but fools will learn in no other.

If we are industrious, we shall never starve; for, at the workingman's house hunger looks in, but dares not enter. Nor will the bailiff or the constable enter, for industry pays debts, while despair increaseth them.

To be humble to superiors is a duty, to equals courtesy, to inferiors nobleness.

If we restrict liberty to attain security we will lose them both.