A friend to all is a friend to none.

滥交者无友。

All are not friends that speak us fair.

说我们好话的未必全是朋友。

A man is known by his friends.

视其友可知其人。

Better an open enemy than a false friend.

虚假的朋友比公开的敌人更坏。

Books and friends should be few but good.

书籍和朋友，在好不在多。

Friendship cannot stand always on one side.

单方面的友谊不久长。

Friends must part.

送君千里，终须一别。

A trouble shared is a trouble halved.

两人分担，困难减半。

A friend is easier lost than found.

朋友易失不易得。

Every man has his faults.

人都有缺点。

True friendship lasts forever.

真正的友谊地久天长。

Many hands make light work.

人多好办事。

When a friend asks, there is no “tomorrow”.

朋友之求不可怠。

Even the best of friends must part.

天下无不散的宴席。