Only the educated are free.
It's always too early to quit.
Things do not happen. Things are made to happen.
Never complain and never explain.
Wherever you are - be all there.
Well done is better than well said.
Be kind whenever possible. It is always possible.
Either you run the day or the day runs you.
The secret of getting ahead is getting started.
If you think you can do it, you can.
It's amazing that something only an atom thick can be an impenetrable barrier. You can have gas on one side and vacuum or liquid on the other, and with a wall only one atom thick, nothing would go through it.