Quality is not an act, it is a habit.
I can, therefore I am.
If you've got a talent, protect it.
The secret of getting ahead is getting started.
To be a good loser is to learn how to win.
Know or listen to those who know.
Without hard work, nothing grows but weeds.
Problems are not stop signs, they are guidelines.
Always desire to learn something useful.
Either you run the day or the day runs you.
In hard-core science fiction in which characters are responding to a change in environment, caused by nature or the universe or technology, what readers want to see is how people cope, and so the character are present to cope, or fail to cope.