1、 The best mirror is an old friend.
最好的镜子是老朋友。
2. Between friends all is common.
朋友之间不分彼此。
3. A life without a friend is a life without a sun.
人生在世无朋友,犹如生活无太阳。
4. The friendship of a gentleman is insipid as water.
君子之交淡如水。
5. Set great store by friendship.
情意重千斤。