the greatest danger you face is your mind growing soft and your eye getting dull. When things get tough and you grow tired of the grind, your mind tends to drift into fantasies; you wish things were a certain way, and slowly, subtly, you turn inward to your thoughts and desires. If things are going well, you become complacent, imagining that what
you have now will continue forever. You stop paying attention. Before you know it, you end up overwhelmed by the changes going on and the younger people rising up around you, challenging your position.
The moment you believe in some cherished idea that you will hold on to no matter what your eyes and ears reveal to you, you are no longer a realist.
What they didn’t realize at the time was that Lincoln came to each circumstance without preconceptions.