1.Big mouthfuls ofter choke.
贪多嚼不烂。

2.Bind the sack before it be full.
做事应适可而止。

3.Birds of a feather flock together.
物以类聚，人以群分。

4.Birth is much, but breeding is more.
出身固然重要，教养更且重要。

5.Bite off more than one can chew.
贪多咽不下。

6.Bite the hand that feeds one.
恩将仇报。

7.Bitter pills may have wholesome effects.
良药苦口利于病。

8.Blind men can judge no colours.
不宜问道於盲。

9.Blood is thicker than water.
血浓于水。

10.Bread is the staff of life.
民以食为天。

11.Brevity is the soul of wit.
言以简洁为贵。

12.Bring up a raven and he'll pick out your eyes.
养虎贻患。

13.Burn not your house to rid it of the mouse.
投鼠忌器。

14.Burnt child dreads the fire.
一朝被蛇咬，十年怕井绳。

15.Business before pleasure.
事业在先，享乐在后。

16.Business is business.
公事公办。

17.By doing we learn.
经一事，长一智。

18.By falling we learn to go safely.
吃一堑，长一智。

19.By other's faults, wise men correct their own.
他山之石，可以攻玉。

20.By reading we enrich the mind; by conversation we polish it.
读书可以使我门的思想充实，谈话使其更臻完美。