Well done is better than well said.
It's always too early to quit.
Always desire to learn something useful.
Only the educated are free.
Be kind whenever possible. It is always possible.
The dog that trots about finds a bone.
Who seeks shall find.
Never complain and never explain.
Do not weep do not wax indignant. Understand.
The secret of getting ahead is getting started.
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.