A bad beginning makes a bad ending.
恶其始者必恶其终。

A bad bush is better than the open field.
有胜于无。

A bad compromise is better than a good lawsuit.
吃亏的和解也比胜诉强。

A bad conscience is a snake in one's heart.
做贼心虚。

A bad custom is like a good cake, better broken than kept.
坏习惯像鲜馅饼，分食要比保存好。

A bad padlock invites a picklock.
开门揖盗。

A bad thing never dies.
坏事传千年。

A bad workman quarrels with his tools.
拙匠常怨工具差。

A bargain is a bargain.
达成的协议不可撕毁。

A beggar's purse is bottomless.
乞丐的钱袋是无底洞。

A bird in the hand is worth two in the bush.
双鸟在林不如一鸟在手。

A bird is known by its note, and a man by his talk.
闻其歌知其鸟，听其言知其人。

A bird may be known by its song.
什么鸟唱什么歌。

A bit in the morning is better than nothing all day.
略有胜于全无。

A blind man who leans against a wall imagines that it's the boundary of
the world.
坐井观天。

A blind man will not thank you for a looking-glass.
秋波送盲，白费痴情。

A book is the same today as it always was and it will never change.
一本好书今天如此，将来也如此，永不改变。

A book that remains shut is but a block.
有书闭卷不阅读，无异是一块木头。

A borrowed cloak does not keep one warm.
借来的斗篷不暖身。

Absence sharpens love, presence strengthens it.
相聚爱益切，离别情更深。