Your corn is ripe today, mine will be so tomorrow. 'Tis profitable for us both that I should labor with you today, and that you should aid me tomorrow. I have no kindness for you, and know you have as little for me. I will not, therefore, take any pains upon your account . . . Here then I leave you to labor alone; you treat me in the same manner. The seasons change, and both of us lose our harvests for want of mutual confidence and security.

Great pleasures are much less frequent than great pains.

Manufacturers...gradually shift their places, leaving those countries and provinces which they have already enriched, and flying to others, whether they are allured by the cheapness of provisions and labour.

The consequence of a very free commerce between the sexes, and of their living much together, will often terminate in intrigues and gallantry.

We may well ask, What causes induce us to believe in the existence of body? but 'tis vain to ask. Whether there be body or not? That is a point which we must take for granted in all our reasonings.

In this sullen apathy neither true wisdom nor true happiness can be found.

The simplest and most obvious cause which can there be assigned for any phenomena, is probably the true one.