Ancient travelers guessed; modern travelers measure.

If he does really think that there is no distinction between virtue and vice, why, sir, when he leaves our houses let us count our spoons.

Falsehood always endeavors to copy the mien and attitude of truth.

It is the great privilege of poverty to be happy unenvied, to be healthful without physic, and secure without a guard; to obtain from the bounty of nature, what the great and wealthy are compelled to procure by the help of artists and attendants, of flatterers and spies.

Most men think indistinctly, and therefore cannot speak with exactness . . .

As to precedents, to be sure they will increase in course of time; but the more precedents there are, the less occasion is there for law; that is to say, the less occasion is there for investigating principles.

The roads of science are narrow, so that they who travel them, must wither follow or meet one another.