These can never be true friends: Hope, dice, a prostitute, a robber, a cheat, a goldsmith, a monkey, a doctor, a distiller. (Indian Proverb) - More Indian Proverbs...
For the first five years of your son's life treat him as a prince, for the next ten years as a slave, then as a friend for the rest of his life. (Indian Proverb) - More Indian Proverbs...
Treat your friends as if hereafter they will become your enemies, and your enemies as if they will become your friends. (Latin Proverb) - More Latin Proverbs...