The natural force within each of us is that greatest healer of all.
Men ought to know that from the brain, and from the brain only, arise our pleasures, joy, laughter and jests, as well as our sorrows, pains, griefs, and tears.
Walking is man's best medicine.
Many admire, few know.
Science is the father of knowledge, but opinion breeds ignorance.
If you are not your own doctor, you are a fool.