a friend in need is a friend indeed, (需要帮助时伸出援手的朋友才是真正的朋友。)患难见真情。
lend your money and lose your friend. 不要把钱借给朋友，如果借了，要么你朋友会因为你催还钱而不高兴，要么你会因为你朋友不还钱而不高兴。
you should not lend money to your friends; if you do, either you will have to bother your friend to repay the loan, which will make your friend resent you, or your friend will not repay the loan, which will make you resent your friend。(这个不太符合中国人的观点吧…不过也有它的道理的)
short reckonings make long friends.好借好还再借不难。怎么外国人的朋友的名言佳句都是借来借去…
with friends like that, who needs enemies?说的是如果有这种人做朋友，还用得着敌人吗?说这朋友很不够义气。
a friend is easier lost than found.得朋友难，失朋友易。
a friend is never known till a man has need.需要之时方知友。
a friend without faults will never be found.没有十全十美的朋友。
a hedge between keeps friendship green.君子之交淡如水。
a faithful friend is the medicine of life.真诚的朋友如一剂生活的良药。
friendship is essentially a partnership.友谊说到底就是好伙伴。
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。
a friend loves at all times.朋友爱心无时不在。
friendship is love without his wings.友谊是不带翅膀的爱情。
my friends is he who will tell me my faults in private.朋友是将我的缺陷私下告诉我的人。
without a friend the world is a wilderness. 没有朋友，世界就等于一片荒野。
when a friend asks, there is no tomorrow. 朋友的要求不要拖。
we can live without our friends, but not without our neighbours. 生活可无友，邻居不能无。