Best Friendship

In an authentic Hadith, the Prophet Muhammad (saws) said: “A person is likely to follow the faith of his friend, so look whom you befriend.”
He who has a thousand friends has not a friend to spare,
And he who has one enemy will meet him everywhere. Ali ibn-Abi-Talib (602 AD - 661 AD),
A Hundred Sayings
Misfortune shows those who are not really friends. Aristotle (384 BC - 322 BC),
Eudemian Ethics
Without friends no one would choose to live, though he had all other goods. Aristotle (384 BC - 322 BC), Nichomachean Ethics
A good friend can tell you what is the matter with you in a minute. He may not seem such a good friend after telling. Arthur Brisbane, "The Book of Today"
The meeting of two personalities is like the contact of two chemical substances: if there is any reaction, both are transformed. Carl Jung (1875 - 1961)
Don’t flatter yourself that friendship authorizes you to say disagreeable things to your intimates. The nearer you come into relation with a person, the more necessary do tact and courtesy become. Except in cases of necessity, which are rare, leave your friend to learn unpleasant things from his enemies; they are ready enough to tell them. Oliver Wendell Holmes (1809 - 1894), The Autocrat of the Breakfast-Table, 1858