Thank you zouguangyong for your proposal,
I do agree with you.

We used to look up at the sky and wonder at our place in the stars, now we just look down and worry about our place in the dirt.

More than half century past, "ask not what your country can do for you but what you can do for your country", which is still so aroused our moment before...

问我们一起能为人类做什么

日本著名经济学家大前研一说日本的年青人智商在下降。不知道中国是否如此

Thank you for your comment.

It is good to know that you are also familiar with the speech.
If so, mine sentences are right before yours.
Take a look at the article again please.
That's why here is a couple of "".

If we don't love our nation, where does the love for Man come from?
Thank you.

For all those who may be interested in,
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"And so, my fellow Americans: ask not what your country can do for you--ask what you can do for your country.

     My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man.

     Finally, whether you are citizens of America or citizens of the world, ask of us here the same high standards of strength and sacrifice which we ask of you. With a good conscience our only sure reward, with history the final judge of our deeds, let us go forth to lead the land we love, asking His blessing and His help, but knowing that here on earth God's work must truly be our own. "

                                                             -- John F. Kennedy, inauguration address, January 1961.

您所用的话非常恰当。现在的年青人不应该老想着别人能为我做些什么，也要考虑我能为别人做些什么。我们的中国似乎也有些像大前研一所指的日本。