what is a friend? a single soul dwelling in two bodies.
--aristotle
什麼是朋友？兩人同心。
--亞里士多德
a friend is, as it were, a second self.
--cicero
一個朋友是另一個自我。
--西塞羅
this communicating of a man's self to his friend works two contrary effects, for it redoubleth joys, and cutteth griefs in half.
--francis bacon
朋友之間交往產生的結果是：一份快樂兩人分享，能變成雙份快樂；一份痛苦二人分擔，只剩下一半痛苦。
--培根
a friend in need is a friend indeed.
--john ray
患難識知己。
--雷伊
in prosperity, our friends know us; in adversity, we know our friends.
--john churton collins
昌盛時，我們的朋友認識我們；逆境時，我們認識我們的朋友。
--科林斯
a faithful friend is beyond price, and there is no weighing of his goodness.
忠實的朋友如無價之寶，他的好處無法估量。
a friend is a person with whom you dare to be yourself.
朋友是你敢於和他坦然相處的人。
*稱頌友誼
friendship is the golden thread that ties the heart of all the world.
--john evelyn
友誼是把全世界所有的心連在一起的一根金線。
--約翰·伊夫林
what though youth gave love and roses, age still leaves us friends and wine.
--thomas moore
青春賦予我們愛情和玫瑰，年歲帶給我們朋友和美酒。
--穆爾
true friendship is like sound health, the value of it is seldom known until it be lost.
--charles colton
真正的友誼猶如人體的健康，只有當已失去時才會意識到它的價值。
--科爾頓
true friendship foresees the need of others rather than proclaims its own.
--andre maurois
真正的友誼能預見別人的需要，而不是宣稱自己的需要。
--莫洛亞
two persons cannot long be friends if they cannot forgive each other's little failings.
--jean de la bruyere
如果兩個人對於彼此的小缺點不能原諒，友誼便不能持久。
--拉布呂耶爾
though time may change so many things, the happiness that friendship brings is never changed.
儘管歲月使萬物變遷，但友誼帶給我們的快樂永遠不會變。
friendship is love with understanding.
友誼是基於理解的愛。
without confidence there is no friendship.
友誼源於信任。