Without hard work, nothing grows but weeds.
What you do today can improve all your tomorrows.
Expect problems and eat them for breakfast.
To be a good loser is to learn how to win.
Only the educated are free.
By failing to prepare, you are preparing to fail.
If you can dream it, you can do it.
Who seeks shall find.
Things do not happen. Things are made to happen.
The secret of getting ahead is getting started.
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.