If you're going through hell, keep going.
Who seeks shall find.
Either you run the day or the day runs you.
Leap, and the net will appear.
Be thine own palace, or the world's thy jail.
If you can dream it, you can do it.
By failing to prepare, you are preparing to fail.
To know oneself, one should assert oneself.
Quality is not an act, it is a habit.
If you think you can do it, you can.
Triumphant science and technology are only at the threshold of man's command over sources of energy so stupendous that, if used for military purposes, they can wipe out our entire civilization.