该句通过否定表达强调缺乏知己带来的精神困境。
A friend who is not sought for our own interests is a true friend. — Herbard
A loyal friend is the incarnation of a Bodhisattva. — (French) Napoleon
A person's misfortune has at least one advantage: it allows them to recognize who their true friends are. — (French) Balzac, *The Human Comedy*
A hundred relatives are not as good as one close friend. — German Proverb
When two people are of one mind, their sharpness can cut through metal; when they speak with one heart, their fragrance is like orchids. — *I Ching*
A person should prosper; once they go downhill, friends no longer exist. — (Ancient Greek) Euripides
People expect friendship because of their own inadequacy and poverty, hoping for mutual help. When a person encounters difficulty, they seek help from others, or they return the favor when others are in trouble. — (Roman) Cicero, *On Friendship*
People make a few friends to comfort themselves because they have not found a single true friend. — (French) Bernar, *On Friendship*
Human friendship binds the hearts of many people together; through this precious connection, it is gentle and sweet. — (Roman) Augustine, *Confessions*
Man is like a vine; his survival depends on other things for support. By embracing others, he gains strength from the embrace. — (English) Puib, *On Man*
The hardship of life is not being able to find a true confidant. — (French) Romain Rolland, *Jean-Christophe*
He who walks with the wise will be wise, but the companion of fools will suffer harm. — *Proverbs, Old Testament*
一个不是我们有所求的朋友才是真正的朋友。——赫巴德
一个忠心的朋友，是菩萨的化身。——（法）拿破仑
一个人倒霉至少有这么一点好处，可以认清谁是真正的朋友。——（法）巴尔扎克《赛查？皮罗多盛衰记》
一百个亲戚还不如一个挚友。——德国谚语
二人同心，其利断金；同心之言，其臭如兰。——《易？系辞上》
人是应该兴旺的，一旦走下坡路，就不存在朋友。——（古希腊）欧里庇得斯
人们期望友情是因为自己的无能和贫乏，所以希望相互帮助。当一个人遇见困难，就求助于人或在别人困难时也回报于他。——（罗马）西塞罗《关于友情》
人因为没找到一个朋友，所以交几个朋友来自我安慰。——（法）勃纳尔《友情论》
人与人的友谊，把多数人的心灵结合在一起，由于这种可贵的联系，它是温柔甜蜜的。——（罗马）奥古斯丁《忏悔录》
人就像藤萝，它的生存靠别的东西支持，他拥抱别人，就从拥抱中得到了力量。——（英）蒲伯《论人》
人生的苦难是不能得一知己。——（法）罗曼？罗兰《约翰？克利斯朵夫》
与智慧人同行的，必得智慧；和愚昧人作伴的，必受亏损。——《旧约？箴言》