See, why not? We celebrate birthdays, where all you have to do is not die for 365 days --  Yet we let people who have made our lives better walk around without knowing it.
你看，为什么不呢？我们庆祝生日， 尽管你所做的不过是在三百六十五天内保持活着而已 然而我们却不与那些改变我们生活的人 分享他们起到的重要作用。