The wise does at once what the fool does at last.
Always desire to learn something useful.
Be thine own palace, or the world's thy jail.
Never complain and never explain.
Leap, and the net will appear.
If you're going through hell, keep going.
Be gentle to all and stern with yourself.
The dog that trots about finds a bone.
Be kind whenever possible. It is always possible.
Only the educated are free.
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.