Only the educated are free.
Without hard work, nothing grows but weeds.
You never know what motivates you.
After a storm comes a calm.
The wise does at once what the fool does at last.
Go for it now. The future is promised to no one.
If you think you can do it, you can.
Quality is not an act, it is a habit.
It's always too early to quit.
Be kind whenever possible. It is always possible.
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.