Psycho-Cybernetics by Maxwell Maltz, Chapter 13, #4

How to turn Crisis into a Creative Opportunity Common experience teaches that, when great demands are made upon us, if only we fearlessly accept the challenge and confidently expend our strength, every danger or difficulty brings its own strength. If your intention, or your attitude-goal, is to go forward, if it is to make the most of the crisis situation, and win out in spite of it, then the excitement of the occasion will re-inforce this tendency—it will give you more courage, more strength to go forward.