A friend is another I.
Justice is Equality...but equality of what?
When a draco has eaten much fruit, it seeks the juice of the bitter lettuce; it has been seen to do this.
Friendship is two souls inhabiting one body.
Every formed disposition of the soul realizes its full nature in relation to and dealing with that class of objects by which it is its nature to be corrupted or improved.
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.