It is easier to forgive an Enemy than to forgive a Friend. William Blake
A friend to all is a friend to none. Aristotle
Of all possessions, a friend is the most precious. Herodotus
An old enemy never becomes a friend. Greek Proverb
A friend without flaws does not exist; if you look for flaws, you will be left without a friend. Chinese Proverb
An old enemy never becomes a friend. Turkish Proverb