Anyone who writes down to children is simply wasting his time. You have to write up, not down. Children are demanding. They are the most attentive, curious, eager, observant, sensitive, quick, and generally congenial readers on earth.... Children are game for anything. I throw them hard words and they backhand them across the net.

Use the smallest word that does the job.

Einstein is loved because he is gentle, respected because he is wise. Relativity being not for most of us, we elevate its author to a position somewhere between Edison, who gave us a tangible gleam, and God, who gave us the difficult dark and the hope of penetrating it.

New York is to the nation what the white church spire is to the village - the visible symbol of aspiration and faith, the white plume saying the way is up!

When we think of [John F. Kennedy], he is without a hat, standing in the wind and weather. He was impatient of topcoats and hats, preferring to be exposed, and he was young enough and tough enough to enjoy the cold and the wind of those times.... It can be said of him, as of few men in a like position, that he did not fear the weather, and did not trim his sails, but instead challenged the wind itself, to improve its direction and to cause it to blow more softly and more kindly over the world and its people.

When an American family becomes separated from its toothbrushes and combs and pajamas for a few hours it considers that it has had quite an adventure.

One of the most time-consuming things is to have an enemy.