Friendship is a relationship of mutual affection
between two or more people. [1]
Friendship is a stronger form of interpersonal bond than an association.
Friendship has been studied in academic fields such as sociology, social psychology, anthropology, and
philosophy. Various academic theories of friendship have been proposed,
including social exchange theory, equity theory, relational dialectics, and
attachment styles. A World Happiness Database study found that people with
close friendships are happier.[2]
Although there are many
forms of friendship, some of which may vary from place to place, certain
characteristics are present in many types of friendship. Such characteristics
include affection, sympathy, empathy, honesty, altruism, mutual understanding
and compassion, enjoyment of each other's company, trust, and the ability to be
oneself, express one's feelings, and make mistakes without fear of judgment
from the friend.
While there is no practical limit on what types of people can
form a friendship, friends tend to share common backgrounds, occupations, or
interests, and have similar demographics.
Sumber:
http://en.wikipedia.org/wiki/Friendship