If you think you can do it, you can.
You never know what motivates you.
After a storm comes a calm.
Without hard work, nothing grows but weeds.
Be gentle to all and stern with yourself.
Expect problems and eat them for breakfast.
Only the educated are free.
Do not weep do not wax indignant. Understand.
The dog that trots about finds a bone.
Either you run the day or the day runs you.
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.