The best and most beautiful things in the world cannot be seen or even touched, but are felt in the heart.

Optimism is the faith that leads to achievement; nothing can be done without hope.

It is not possible for civilization to flow backwards while there is youth in the world. Youth may be headstrong, but it will advance it allotted length.

Life is either a great adventure or nothing.

My wife was my greatest asset. I didn't marry her until after World War II, but she has complemented me in every job I've ever had.

In 1918, when I was 6 or 7 years old, radio was just coming into use in the Great War.

Very often when we talk about war, conflict or terrorism, we talk about it very politically. We forget that there are people involved.

In the nineteenth century, in part because a ton of American men moved west, in part because of the Civil War, and in part because of trepidation about marriage, which was then a very confining institution, there was a big population of women - mostly middle-class white women on the East Coast - who didn't marry.