请问 人最好的朋友是自己 这句话怎么翻译成英文最合适?

问题描述:

请问 人最好的朋友是自己 这句话怎么翻译成英文最合适?

The best friend of oneself is himself.

人最好的朋友是自己
Man's best friend is his own

one's best friend is no other than himself

the best friend of people is himself