The wise does at once what the fool does at last.
Do not weep do not wax indignant. Understand.
The most effective way to do it, is to do it.
Things do not happen. Things are made to happen.
Quality is not an act, it is a habit.
You never know what motivates you.
Problems are not stop signs, they are guidelines.
I can, therefore I am.
If you're going through hell, keep going.
Be gentle to all and stern with yourself.
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.