| You can't know, you can only believe - or not. |
| Great minds are always feared by lesser minds. |
| A little knowledge is a dangerous thing. So is a lot. |
| Whatever in creation exists without my knowledge exists without my consent. |
| An investment in knowledge pays the best interest. |
| Knowledge comes, but wisdom lingers. |
| To not say all that can be said is the secret of discipline and economy. |
| Unless you try to do something beyond what you have already mastered, you will never grow. |
| Whoever submits himself to a super-discipline can expect great triumphs. |
| It is sometimes easier to be happy if you don't know everything. |