Aristotle

1. Friendship is necessary to perfect one's relationships with others for humans.

1.1. Pleasure (sensual)

1.2. Utility (useful)

1.3. Virtue (charater building)

1.3.1. Intellectual

1.3.1.1. Philosophical

1.3.1.2. Practical

1.3.2. Moral

1.3.2.1. Habit of acting at the mean between 2 extremes of behavior.

1.3.2.1.1. Mean: the middle

1.3.2.1.2. Habit: takes time. it must be second nature.

1.3.2.2. Humans are NOT born virtuous.

1.3.2.2.1. Opposite of Plato's thinking.

1.3.3. The best type of friendship because it leads to happiness.

1.3.3.1. Happiness: Main goal to be achieved by humans.

1.3.3.1.1. Rich

1.3.3.1.2. Good looking

1.3.3.1.3. Not a laborer

1.3.3.1.4. Good friends

1.3.3.1.5. Political power

1.3.3.2. Happiness = Virtue

2. "Man is by nature, a social animal."