The greatest mistake physicians make is that they attempt to cure the body without attempting to cure the mind, yet the mind and the body are one and should not be treated separately!
There are hundreds of thousands of microbes surrounding us, but they cannot harm us unless we become weak, until the body is ready and predisposed to receive them. There may be a million microbes of misery floating about us. Never mind! They dare not approach us, they have no power to get a hold on us, until the mind is weakened. This is the great fact: strength is life. Weakness is death. Strength is felicity, life eternal, immortal. Weakness is constant strain and misery: weakness is death
And it did for one wild moment cross my mind that, perhaps, those might not be the very best judges of the relation of religion to happiness who, by their own account, had neither one nor the other.
To understand the totality of this extraordinary thing called life, one must obviously not be too definite about these things. One cannot be definite with something which is so immense, which is not measurable by words. We cannot understand the immeasurable so long as we approach it through time.
In ancient times, those who wished to illuminate the world with virtue first brought order to their nations. Wishing to order well their nations, they first harmonized their families. Wishing to harmonize their families, they first cultivated themselves. Wishing to cultivate themselves, they first rectified their minds. Those who wished to rectify their minds first made their intentions sincere.