Government has no other end, but the preservation of property.

A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else.

All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty or possessions.

All men are liable to error; and most men are, in many points, by passion or interest, under temptation to it.

All wealth is the product of labor.

An excellent man, like precious metal, is in every way invariable; A villain, like the beams of a balance, is always varying, upwards and downwards.

Any one reflecting upon the thought he has of the delight, which any present or absent thing is apt to produce in him, has the idea we call love.

The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.

Fashion for the most part is nothing but the ostentation of riches.

It is of great use to the sailor to know the length of his line, though he cannot with it fathom all the depths of the ocean.

It is one thing to show a man that he is in an error, and another to put him in possession of the truth.

New opinions are always suspected, and usually opposed, without anyother reason but because they are not already common.

No man's knowledge here can go beyond his experience.

One unerring mark of the love of truth is not entertaining any proposition with greater assurance than the proofs it is built upon will warrant.

Our deeds disguise us. People need endless time to try on their deeds, until each knows the proper deeds for him to do. But every day, every hour, rushes by. There is no time.