Tastes in young people are changed by natural impetuosity, and in the aged are preserved by habit.

It's easier to know people in general than one person in particular

Avarice often produces opposite results: there are an infinite number of persons who sacrifice their property to doubtful and distant expectations; others mistake great future advantages for small present interests.

Nothing is so contagious as example; never was there any considerable good or ill done that does not produce its like. We imitate good actions through emulation, and had ones through a malignity in our nature, which shame conceals, and example sets at liberty.

We often pride ourselves on even the most criminal passions, but envy is a timid and shamefaced passion we never dare to acknowledge.

It is great folly to wish to be wise all alone.

What renders us so changeable in our friendship is, that it is difficult to know the qualities of the soul, but easy to know those of the mind.