All human happiness and misery take the form of action.

Friends are an aid to the young, to guard them from error; to the elderly, to attend to their wants and to supplement their failing power of action; to those in the prime of life, to assist them to noble deeds.

The law is reason unaffected by desire.

With respect to the requirement of art, the probable impossible is always preferable to the improbable possible.

We should aim rather at leveling down our desires than leveling up our means.

Bashfulness is an ornament to youth, but a reproach to old age.

[Prudence] is the virtue of that part of the intellect [the calculative] to which it belongs; and . . . our choice of actions will not be right without Prudence any more than without Moral Virtue, since, while Moral Virtue enables us to achieve the end, Prudence makes us adopt the right means to the end.