It pays to know the enemy - not least because at some time you may have the opportunity to turn him into a friend.
Margaret Thatcher

When a man's best friend is his dog, that dog has a problem.
Edward Abbey

If people think nature is their friend, then they sure don't need an enemy.
Kurt Vonnegut

To get a hold on boys you must be their friend.
Robert Baden-Powell

When you are younger, the camera is like a friend and you can go places and feel like you're with someone, like you have a companion.
Annie Leibovitz

No person is your friend who demands your silence, or denies your right to grow.
Alice Walker

A friend is, as it were, a second self.
Marcus Tullius Cicero

It is one of the severest tests of friendship to tell your friend his faults. So to love a man that you cannot bear to see a stain upon him, and to speak painful truth through loving words, that is friendship.
Henry Ward Beecher

We can be thankful to a friend for a few acres, or a little money; and yet for the freedom and command of the whole earth, and for the great benefits of our being, our life, health, and reason, we look upon ourselves as under no obligation.
Lucius Annaeus Seneca

Consult your friend on all things, especially on those which respect yourself. His counsel may then be useful where your own self-love might impair your judgment.
Lucius Annaeus Seneca

What sweetness is left in life, if you take away friendship? Robbing life of friendship is like robbing the world of the sun. A true friend is more to be esteemed than kinsfolk.
Marcus Tullius Cicero

Never injure a friend, even in jest.
Marcus Tullius Cicero

Think twice before burdening a friend with a secret.
Marlene Dietrich

Never do a wrong thing to make a friend or to keep one.
Robert E. Lee

Everyone is your best friend when you are successful. Make sure that the people that you surround yourself with are also the people that you are not afraid of failing with.
Paula Abdul

The friend in my adversity I shall always cherish most. I can better trust those who helped to relieve the gloom of my dark hours than those who are so ready to enjoy with me the sunshine of my prosperity.
Ulysses S. Grant

There is as much difference between the counsel that a friend giveth, and that a man giveth himself, as there is between the counsel of a friend and of a flatterer. For there is no such flatterer as is a man's self.
Francis Bacon

Son, brother, father, lover, friend. There is room in the heart for all the affections, as there is room in heaven for all the stars.
Victor Hugo

No woman ever hates a man for being in love with her, but many a woman hate a man for being a friend to her.
Alexander Pope

Trust not yourself, but your defects to know, make use of every friend and every foe.
Alexander Pope