Enlightenment is man's emergence from his self-imposed nonage. Nonage is the inability to use one's own understanding without another's guidance. This nonage is self-imposed if its cause lies not in lack of understanding but in indecision and lack of courage to use one's own mind without another's guidance. Dare to know!
We need the iron qualities that go with true manhood. We need the positive virtues of resolution, of courage, of indomitable will, of power to do without shrinking the rough work that must always be done.
If people bring so much courage to this world the world has to kill them to break them, so of course it kills them. The world breaks every one and afterward many are strong at the broken places. But those that will not break it kills. It kills the very good and the very gentle and the very brave impartially. If you are none of these you can be sure it will kill you too but there will be no special hurry.
Sta come torre ferma, che non crolla
Giammai la cima per soffiar de' venti.
Be steadfast as a tower that doth not bend its stately summit to the tempest's shock.
Courage charms us, because it indicates that a man loves an idea better than all things in the world, that he is thinking neither of his bed, nor his dinner, nor his money, but will venture all to put in act the invisible thought of his mind.
Life's journey is not traveled on a freeway devoid of obstacles, pitfalls, and snares. Rather, it is a pathway marked by forks and turnings. Decisions are constantly before us. To make them wisely, courage is needed: the courage to say, 'No,' the courage to say, 'Yes.' Decisions do determine destiny. The call for courage comes constantly to each of us. It has ever been so, and so shall it ever be.