[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.

Now what is just and right is to be interpreted in the sense of 'what is equal'; and that which is right in the sense of being equal is to be considered with reference to the advantage of the state, and the common good of the citizens. And a citizen is one who shares in governing and being governed. He differs under different forms of government, but in the best state he is one who is able and willing to be governed and to govern with a view to the life of virtue.

While fiction is often impossible, it should not be implausible.

A friend is simply one soul in two bodies.

The virtue as the art consecrates itself constantly to what's difficult to do, and the harder the task, the shinier the success.

To be conscious that we are perceiving or thinking is to be conscious of our own existence.

The energy or active exercise of the mind constitutes life.