The greatest virtues are those which are most useful to other persons. Arist

-Aristotle
Aristotle

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.

Aristotle
Anything that we have to learn to do we learn by the actual doing of it; People become builders by building and instrumentalists by playing instruments. Similarily, we become just by performing just acts, temperate by performing temperate ones, brave by performing brave ones.
Aristotle

With the truth, all given facts harmonize; but with what is false, the truth soon hits a wrong note.

Aristotle
Our virtues are voluntary (and in fact we are in a sense ourselves partly the cause of our moral dispositions, and it is our having a certain character that makes us set up an end of a certain kind), it follows that our vices are voluntary also; they are voluntary in the same manner as our virtues.
Aristotle

Our judgments when we are pleased and friendly are not the same as when we are pained and hostile.

Aristotle
Being a father is the most rewarding thing a man whose career has plateaued can do.
Aristotle

There are two distinctive peculiarities by reference to which we characterize the soul (1) local movement and (2) thinking, discriminating, and perceiving. Thinking both speculative and practical is regarded as akin to a form of perceiving; for in the one as well as the other the soul discriminates and is cognizant of something which is.

Aristotle
All men by nature desire knowledge.
Aristotle

The true and the approximately true are apprehended by the same faculty; it may also be noted that men have a sufficient natural instinct for what is true, and usually do arrive at the truth. Hence the man who makes a good guess at truth is likely to make a good guess at probabilities.

Aristotle
The poet, being an imitator like a painter or any other artist, must of necessity imitate one of three objects - things as they were or are, things as they are said or thought to be, or things as they ought to be. The vehicle of expression is language - either current terms or, it may be, rare words or metaphors.