Book Review/Summary - The Four Loves (C.S. Lewis)

1. Affection (Storge) - Fondness through familiarity, grows naturally, and is 9/10 of human happiness
2. Friendship (Philia) - True friendship, and the least necessary biologically
3. Romantic (Eros) - Being "in love"
4. Charity (Agape) - Unconditional, and the greatest of loves, where all is willing to be sacrificed for the good of the other.

Lewis further explains that there is love that is needed, love that is give, and love as an appreciation of something. However, these places that love "comes from" are complicated and be good or bad. For example, the need love of a child is a necessity, not being selfish. Conversely, excessive gift-love of the parent can be a perversion on its own.