You will never be alone with a poet in your pocket

From The Jefferson Lecture by David McCullough, delivered in 2003.

But it is in their ideas about happiness, I believe, that we come close to the heart of their being, and to their large view of the possibilities in their Glorious Cause.

In general, happiness was understood to mean being at peace with the world in the biblical sense, under one's own "vine and fig tree." But what did they, the Founders, mean by the expression, "pursuit of happiness"?

It didn't mean long vacations or material possessions or ease. As much as anything it meant the life of the mind and spirit. It meant education and the love of learning, the freedom to think for oneself.

Jefferson defined happiness as "tranquility and occupation." For Jefferson, as we know, occupation meant mainly his intellectual pursuits.

Washington, though less inclined to speculate on such matters, considered education of surpassing value, in part because he had had so little. Once, when a friend came to say he hadn't money enough to send his son to college, Washington agreed to help -- providing a hundred pounds in all, a sizable sum then -- and with the hope, as he wrote, that the boy's education would "not only promote his own happiness, but the future welfare of others …." For Washington, happiness derived both from learning and employing the benefits of learning to further the welfare of others.

John Adams, in a letter to his son John Quincy when the boy was a student at the University of Leiden, stressed that he should carry a book with him wherever he went. And that while a knowledge of Greek and Latin were essential, he must never neglect the great works of literature in his own language, and particularly those of the English poets. It was his happiness that mattered, Adams told him. "You will never be alone with a poet in your pocket."