1、A life without a friend is a life without a sun.人生没有朋友,犹如人生没有了太阳。2、A friend is a second self.朋友乃第二个自我。3、Between friends all is common.朋友间不分彼此。4、Friendship is a love without wings.友谊是一种无形的爱。5、A friend to all is a friend to none.滥交者没有朋友。