Know or listen to those who know.
Either you run the day or the day runs you.
Be kind whenever possible. It is always possible.
Expect problems and eat them for breakfast.
Leap, and the net will appear.
If you think you can do it, you can.
You never know what motivates you.
After a storm comes a calm.
The secret of getting ahead is getting started.
Without hard work, nothing grows but weeds.
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.