To know oneself, one should assert oneself.
Know or listen to those who know.
Without hard work, nothing grows but weeds.
Be thine own palace, or the world's thy jail.
To be a good loser is to learn how to win.
The dog that trots about finds a bone.
If you're going through hell, keep going.
Be gentle to all and stern with yourself.
If you can dream it, you can do it.
Problems are not stop signs, they are guidelines.
Science fiction is an amazing literature: plot elements that you would think would be completely worn out by now keep changing into surprising new forms.