The great thing, then, in all education, is to make our nervous system our ally instead of our enemy.
William JamesTruth is one species of good, and not, as is usually supposed, a category distinct from good, and co-ordinate with it
William JamesThe sovereign voluntary path to cheerfulness, if our spontaneous cheerfulness be lost, is to sit up cheerfully, to look round cheerfully, and to act and speak as if cheerfulness were already there. If such conduct does not make you soon feel cheerful, nothing else on that occasion can. So 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 James