1.Let every man praise the bridge he goes over.
饮水思源。

2.Kind hearts are more than coronets.
善良的心灵胜于显贵的地位。

3.Kindness is the language that the deaf can hear and the dumb understand.
善良为语言，聋子能天见哑巴懂心间。

4.Kindness is the sunshine of social life.
仁慈是社会生活中的阳光。

5.Kind words are the music of the world.
善言是世上的音乐。

6.Knowledge advances by steps not by leaps.
知识的获得是循序渐进而不是突飞猛进的。

7.Knowledge comes from experience alone.
知识来自经验。

8.Knowledge is a comfortable and necessary retreat and shelter for us in an advanced age; and if we do not plant it when young, it will give us no shade when we grow old.
学识可使老年时舒适地退隐和有所寄托；但如果年青时不使它扎下根，老年就得不到它的庇护。

9.Knowledge is a treasure, but practice is the key to it.
知识是一座宝库，实践是打开宝库的钥匙。

10.Knowledge is long, life is short.
吾生有涯，而知识无涯。

11.Knowledge is of two kinds, we know a subject ourselves, or we know where we can find information upon it.
知识有两种，一种是我们自己知道的东西，另一种是知道哪里可以找到有关的资料。

12.Knowledge is power.
知识就是力量。

13.Knowledge is the antidote to fear.
知识可以解除恐惧。

14.Knowledge is the most precious treasure of all things, because it can never be given away, nor stolen nor consumed.
知识是万物中最珍贵的财宝，丢不掉，偷不走，也不会损耗。

15.Knowledge makes humble; ignorance makes proud.
知识令人谦虚；无知使人骄傲。

16.Knowledge without practice makes but half an artist.
只有知识而无实践，只能造就半瓢水的艺术家。

17.Know something like the palm of one's hand.
熟知其事，了如指掌。

18.The best horse needs breeding, and the aptest child needs teaching.
最好的马要驯，最伶俐的孩子要教。

19.Learn young, learn fair.
学习趁年轻，学就要学好。

20.Wisdom in the mind is better than money in the hand.
胸中有知识，胜于手中有金钱。