We are blessed to live in the greatest nation on Earth. But we can always be greater. We can always aspire to something more. That doesn’t depend on who you elect to office. It depends on you, as citizens, how big you want to be, and how badly you want it.
Look at all America has accomplished. Look at how big we’ve been.
I dare you to do better. I dare you to be better.
From what I have seen of your generation, I have no doubt you will. I wish you courage, and compassion, and all the strength you need for that tranquil and steady dedication of a lifetime. 
Thank you, God bless you, and God bless the United States of America.

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "We are blessed to live in the greatest nation on Earth. But we can always be greater. We can always aspire to something more. That doesn’t depend on who you elect to office. It depends on you, as citizens, how big you want to be, and how badly you want it.
Look at all America has accomplished. Look at how big we’ve been.
I dare you to do better. I dare you to be better.
From what I have seen of your generation, I have no doubt you will. I wish you courage, and compassion, and all the strength you need for that tranquil and steady dedication of a lifetime. 
Thank you, God bless you, and God bless the United States of America." in the context of "" to mean that wisdom is timeless.