关于朋友的英文谚语如下：
1、A friend is easier lost than found.
得朋友难， 失朋友易。
2、A friend in need is a friend indeed.
患难见真情。
3、Between friends all is common.
朋友之间不分彼此。
4、Life without a friend is death.
没有朋友， 虽生犹死。
5、Misfortune tests the sincerity of friends.
患难见真情。
6、Old friends and old wines are best.
陈酒味醇， 老友情深。
7、A friend is never known till a man has need.
需要之时方知友。
8、Set great store by friendship.
情意重千斤。
9、Between friends all is common.
朋友之间不分彼此。
10、Old friends and old wine are best.
陈酒味醇， 老友情深。
11、The friendship of a gentleman is insipid as water.
君子之交淡如水。
12、A bosom friend afar brings a distant land near.
海内存知己， 天涯若比邻。
13、Most men's friendships are too inarticulate.
人的友谊是无法言喻的。
14、A friend without faults will never be found.
没有十全十美的朋友。
15、He is a good friend that speaks well of us behind our backs.
背后说好话， 才是真朋友。
16、What is a friend? A single soul dewlling in two bodies.
朋友是什么？两幅躯壳拥有同一个灵魂。
17、Without a friend, the world is a wilderness.
没有朋友，世界成了荒野。
18、A friend is a second self.
朋友乃第二之自我。
19、No road is long with good company.
与良友为伴，路遥不觉远。
20、Faith will move mountain.
精诚所至，金石为开。