Columbia subject headings:
Aristotle.
Concept of friendship.
Friendship--History.
Love--History.
Plato.
Self-esteem--History.
Harvard subject headings:
Aristotle--Contributions in concept of friendship.
Friendship--History.
Love--History
Plato--Contributions in concept of friendship.
Self-esteem--History.
Princeton subject headings:
Aristotle.
Friendship.
Intersubjectivity--History.
Philosophy, Ancient.
Plato.
Self (Philosophy)
Subjectivity--History.