If you're going through hell, keep going.
The secret of getting ahead is getting started.
Who seeks shall find.
To be a good loser is to learn how to win.
Leap, and the net will appear.
To know oneself, one should assert oneself.
If you've got a talent, protect it.
The most effective way to do it, is to do it.
What you do today can improve all your tomorrows.
Problems are not stop signs, they are guidelines.
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.