| True freedom is impossible without a mind made free by discipline. |
| Self-respect is the root of discipline: The sense of dignity grows with the ability to say no to oneself. |
| Vulnerability is our most accurate measurement of courage. |
| Who so would be a man must be a nonconformist. |
| The knowledge of all things is possible. |
| Creativity takes courage. |
| Others have seen what is and asked why. I have seen what could be and asked why not. |
| It takes considerable knowledge just to realize the extent of your own ignorance. |
| When you reach the end of what you should know, you will be at the beginning of what you should sense. |
| Courage is the most important of all the virtues because without courage, you can't practice any other virtue consistently. |
