Be gentle to all and stern with yourself.
Be thine own palace, or the world's thy jail.
Expect problems and eat them for breakfast.
Never complain and never explain.
Only the educated are free.
Leap, and the net will appear.
If you can dream it, you can do it.
I can, therefore I am.
Know or listen to those who know.
The dog that trots about finds a bone.
One of the nice things about science fiction is that it lets us carry out thought experiments.
Some ideas you have to chew on, then roll them around a lot, play with them before you can turn them into funky science fiction.