Related:

• Make new friends but keep the old ones; One is silver and the other's gold.
• Old friends are always best, less you can catch a new one that's fit to make an old one out of.
• Silver and gold make even pigs seem clean.
• Experience is what causes a person to make new mistakes instead of old ones.
• You like to form new friendships and make new acquaintances.
  Because your old friends don't like you anymore....
• A word fitly spoken is like apples of gold in pictures of silver.
  -- Old Testament -- Proverbs xxv, 11...