Taking action means saying 'no' to indifference. If there is a war to be waged, it is the war against the indifference which is eating away at our societies.

There's the world's work to be done, and there are never enough citizens with determined hearts, courageous character, intelligent minds, and idealistic souls to do it. Yes, our world already has quite enough guns, political platitudes, arrogance, disingenuousness, self-interest, snobbishness, superficiality, war, and the certainty that God is on one side or the other. But it never has enough conscience, nor enough tolerance, idealism, justice, compassion, wisdom, humility, self-sacrifice for the greater good, integrity, courtesy, poetry, laughter, and generosity of substance and spirit. It is these elements that I urge you to carry into your careers, and remember that the great game of life is not about money; it is about doing your best to build the world anew.

The first principle is that you must not fool yourself—and you are the easiest person to fool. So you have to be very careful about that. After you've not fooled yourself, it's easy not to fool other scientists. You just have to be honest in a conventional way after that.

At the age of 21, as a Moeid, I believed that behind every universal phenomenon there must be beauty and simplicity in its description. This belief remains true today.

And in all of that time I won a nickname, ``The Great Communicator.'' But I never thought it was my style or the words I used that made a difference: it was the content. I wasn't a great communicator, but I communicated great things, and they didn't spring full bloom from my brow, they came from the heart of a great nation -- from our experience, our wisdom, and our belief in the principles that have guided us for two centuries.

You know, down the hall and up the stairs from this office is the part of the White House where the President and his family live. There are a few favorite windows I have up there that I like to stand and look out of early in the morning. The view is over the grounds here to the Washington Monument, and then the Mall and the Jefferson Memorial. But on mornings when the humidity is low, you can see past the Jefferson to the river, the Potomac, and the Virginia shore. Someone said that's the view Lincoln had when he saw the smoke rising from the Battle of Bull Run. I see more prosaic things: the grass on the banks, the morning traffic as people make their way to work, now and then a sailboat on the river.

The way I see it, there were two great triumphs, two things that I'm proudest of. One is the economic recovery, in which the people of America created -- and filled -- 19 million new jobs. The other is the recovery of our morale. America is respected again in the world and looked to for leadership.