Know or listen to those who know.
Begin to be now what you will be hereafter.
What you do today can improve all your tomorrows.
Either you run the day or the day runs you.
If you're going through hell, keep going.
Do not weep do not wax indignant. Understand.
Be thine own palace, or the world's thy jail.
After a storm comes a calm.
Always desire to learn something useful.
Wherever you are - be all there.
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.