There is, accordingly, no better known or more generally useful precept in the moral training of youth, or in one’s personal self-discipline, than that which bids us pay primary attention to what we do and express, and not to care too much for what we feel. If we only check a cowardly impulse in time, for example, or if we only don’t strike the blow or rip out with the complaining or insulting word that we shall regret as long as we live, our feelings themselves will presently be the calmer and better, with no particular guidance from us on their own account. Action seems to follow feeling, but really action and feeling go together; and by regulating the action, which is under the more direct control of the will, we can indirectly regulate the feeling, which is not.
Thus the 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. Again, in order to feel kindly toward a person to whom we have been inimical, the only way is more or less deliberately to smile, to make sympathetic inquiries, and to force ourselves to say genial things. One hearty laugh together will bring enemies into a closer communion of heart than hours spent on both sides in inward wrestling with the mental demon of uncharitable feeling. To wrestle with a bad feeling only pins our attention on it, and keeps it still fastened in the mind: whereas, if we act as if from some better feeling, the old bad feeling soon folds its tent like an Arab, and silently steals away.
The best manuals of religious devotion accordingly reiterate the maxim that we must let our feelings go, and pay no regard to them whatever. In an admirable and widely successful little book called ‘The Christian’s Secret of a Happy Life,’ by Mrs. Hannah Whitall Smith, I find this lesson on almost every page. Act faithfully, and you really have faith, no matter how cold and even how dubious you may feel. “It is your purpose God looks at,” writes Mrs. Smith, “not your feelings about that purpose; and your purpose, or will, is therefore the only thing you need attend to. . . . Let your emotions come or let them go, just as God pleases, and make no account of them either way. . . . They really have nothing to do with the matter. They are not the indicators of your spiritual state, but are merely the indicators of your temperament or of your present physical condition.”
The Gospel of Relaxation
You can get the whole thing in this collection of essays (which includes many other gems):
The Heart of William James
On Vital Reserves: The Energies of Men; The Gospel of Relaxation