There is no doubt that healthy-mindedness is inadequate as a philosophical doctrine, because the evil facts which it refuses positively to account for are a genuine portion of reality; and they may after all be the best key to life's significance, and possibly the only openers of our eyes to the deepest levels of truth.
William JamesSo to feel brave, act as if we were brave, use all our will to that end...and a courage-fit will very likely replace the fit of fear.
William JamesGreat emergencies and crises show us how much greater our vital resources are than we had supposed.
William JamesFirst... a new theory is attacked as absurd; then it is admitted to be true, but obvious and insignificant; finally it is seen to be so important that its adversaries claim that they themselves discovered it.
William James