A gentleman acts on behalf of an understanding friend, as a woman makes herself beautiful for her lover. 士为知己者用，女为悦己者容。
A brother may not be a friend, but a friend will always be a brother.兄弟不一定是朋友, 而朋友一定是兄弟。
Friendship is almost always the union of a part of one mind with a part of another; people are friends in spots. 友谊是两者思想的结合, 志趣相投才能成为朋友。
Be true to your word, your work, and your friend. 人应遵守诺言，忠实自己的工作和友人。
I know not whether our names will be immortal; I am sure our friendship will. 我不知道我们的名字能否永垂不朽；我敢说我们的友谊会与世长存。
The true friendship seeks to give, not take; to help, not to be helped; to minister, not to be ministered unto.真正的友谊追求的是给予，而不是索取； 是帮助别人，而不是被人帮助；是为人服务，而不是被人服务。
To prepare a friend, three things are required: to honor him present, praise him absent, and assist him in his necessities. 维护朋友，有三件事情要做到：当面要尊重他，不在场时要表扬他， 苦难时要帮助他。
Choose thy friends like thy books, few but choice. 选择朋友要像选书那样， 数量要少，但质量要精。
My friend is not perfect—nor am I—and so we suit each other admirably.朋友不会十全十美，你自己也一样，双方要互相尊敬。
For a congenial friend a thousand toasts are too few; in a disagreeable conversation one word more is too many. 酒逢知己千杯少，话不投机半句多。