帮我翻译一下这句成英语

When one can no longer possess, the only thing he can do is not to forget.

The one should forget something that no longer belongs him.

When a man cannot have again, he can do is not to forget

When a person can't be owned longer,don't forget is the only thing that he can do.

When a people can have more,what he can do is not to forget.

When a person can no longer owns, he can do is do not forget