The subject matter of the stories on the surface... there seem to be a number of stories about travel.

My writing is a combination of three elements. The first is travel: not travel like a tourist but travel as exploration. The second is reading literature on the subject. The third is reflection.

Of all possible subjects travel is the most difficult for an artist as it is the easiest for a journalist.

I never could have done what I have done without the habits of punctuality order and diligence without the determination to concentrate myself on one subject at a time.

We are time's subjects and time bids be gone.

I have taught history on the high school and college levels and am or have been a lecturer at the Smithsonian The National Institutes of Health and numerous colleges and universities mostly on science fiction and technology subjects.

The teacher that I was for decades and that I still am in a certain way wondered what was meant by the word education. I was truly dumbfounded at the very thought of dealing with such an essential and extensive subject.

A teacher enlarges people in all sorts of ways besides just his subject matter.

You know a football coach is nothing more than a teacher. You teach them the same subject and you have a group of new guys every year.

My physics teacher Thomas Miner was particularly gifted. To this day I remember how he introduced the subject of physics. He told us we were going to learn how to deal with very simple questions such as how a body falls due to the acceleration of gravity.