Know or listen to those who know.
Go for it now. The future is promised to no one.
Who seeks shall find.
Things do not happen. Things are made to happen.
Leap, and the net will appear.
Well done is better than well said.
If you're going through hell, keep going.
The wise does at once what the fool does at last.
I can, therefore I am.
Only the educated are free.
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.