| Great is the art of the beginning, but greater is the art of ending. |
| What I really need is to get clear out about what I must do, not what I must know, except insofar as knowledge precedes every act. |
| Virtue is never lonely. He who practices it will have friends. |
| The chains of habit are too light to be felt until they are too heavy to be broken. |
| Be brave take risks. Nothing can substitute experience. |
| I am not discouraged, because every wrong attempt discarded is another step forward. |
| Prosperity doth best discover vice, but adversity doth best discover virtue. |
| Courage is the art of being the only one who knows you're scared to death. |
| Courage and perseverance have a magical talisman, before which difficulties disappear and obstacles vanish into air. |
| The true method of knowledge is experiment. |
