1) Without a friend the world is a wilderness. 没有朋友，世界就等於一片荒野。

2) There is no stronger bond of friendship than a mutual enemy.具有共通敵人的友誼最牢固。

3) There are three kinds of friends: best friends, guest friends, and pest friends.朋友有三种类:亲密无间的朋友,客人一样的朋友,难缠的朋友。

4) The friendship of a gentleman is insipid as water。 君子之交淡如水。

5) One friend in a lifetime is much; two are many; three are hardly possible一生有一个朋友就够了,有两个则太多,三个则很难存在。

6) Keep the old, meet the new; one is gold, another is silver.保有老朋友，认识新朋友;一个是黄金，一个是白银。

7) In time of prosperity, friends will be plenty; In time of adversity, not one amongst twenty. 富在深山有远亲，穷在闹市无人。

8) Good friends are like bras;snug,supportive and always close to the heart! 好友就像胸罩：温暖舒适，默默的支持着，而且永远贴近我们的心。

9) Friendship multiplies joys and divides griefs. 友谊可以增添欢乐，可以分担忧愁。

网:Friendship is love with understanding. 友谊是爱加上谅解。