Know or listen to those who know.
Without hard work, nothing grows but weeds.
I can, therefore I am.
Do not weep do not wax indignant. Understand.
Go for it now. The future is promised to no one.
Who seeks shall find.
Always desire to learn something useful.
If you're going through hell, keep going.
If you think you can do it, you can.
The most effective way to do it, is to do it.
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.