Friendship is equality

Aristotle in his book Nicomachean Ethics speaks frecuently about the theme of friendship, he speaks about the mercy, "the ethical friendship"; the justice, "the general friendship; and the Concord, "the political friendship". For Aristotle friendship is not also necessary but beautiful:"friendship is equality", "the benevolence is the beginning of the friendship" expresses to us.
Friendship is equality because it is closely related to a form of love: "Philia". In the ancient greek lenguage each form of love had his own name: eros, the love of lovers, agape the love for the good and Philia. This last form of love is the love that arises from the pleasure of seeing ourselves reflected in the others. The natural love, Philia is the origine of the friendship and the equality, the likeness, among men.