After a storm comes a calm.
Problems are not stop signs, they are guidelines.
Always desire to learn something useful.
Quality is not an act, it is a habit.
Be thine own palace, or the world's thy jail.
If you're going through hell, keep going.
Leap, and the net will appear.
Well done is better than well said.
By failing to prepare, you are preparing to fail.
You never know what motivates you.
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.