It is useless to attempt to reason a man out of a thing he was never reasoned into.

A lie does not consist in the indirect position of words, but in the desire and intention, by false speaking, to deceive and injure your neighbour.

Your onions should be thoroughly boiled.

For, if we take an examination of what is generally understood by happiness, as it has respect either to the understanding or the senses, we shall find all its properties and adjuncts will herd under this short definition: that it is a perpetual possession of being well deceived.

I remember it was with extreme difficulty that I could bring my master to understand the meaning of the word opinion, or how a point could be disputable; because reason taught us to affirm or deny only where we are certain; and beyond our knowledge we cannot do either.

This single Stick, which you now behold ingloriously lying in that neglected Corner, I once knew in a flourishing State in a Forest: It was full of Sap, full of Leaves, and full of Boughs: But now, in vain does the busy Art of Man pretend to vie with Nature, by tying that withered Bundle of Twigs to its sapless Trunk: It is at best but the Reverse of what it was; a Tree turned upside down, the Branches on the Earth, and the Root in the Air.

In all assemblies, though you wedge them ever so close, we may observe this peculiar property, that over their heads there is room enough; but how to reach it is the difficult point. To this end the philosopher's way in all ages has been by erecting certain edifices in the air.