Always desire to learn something useful.
To know oneself, one should assert oneself.
The dog that trots about finds a bone.
If you're going through hell, keep going.
The most effective way to do it, is to do it.
It's always too early to quit.
What you do today can improve all your tomorrows.
Either you run the day or the day runs you.
Expect problems and eat them for breakfast.
Do not weep do not wax indignant. Understand.
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.