By failing to prepare, you are preparing to fail.
Things do not happen. Things are made to happen.
Always desire to learn something useful.
The wise does at once what the fool does at last.
The most effective way to do it, is to do it.
You never know what motivates you.
Leap, and the net will appear.
If you think you can do it, you can.
To know oneself, one should assert oneself.
To be a good loser is to learn how to win.
Science fiction is an amazing literature: plot elements that you would think would be completely worn out by now keep changing into surprising new forms.