The History of Dermatology

"The skin, indeed, must not be considered merely as a common covering to defend us from the sun and the rain, but as one of the most important organs of our body, without the incessant activity and agency of which, there can be neither health nor long life; and in the neglect of which, in modern times, lies the secret source of numberless diseases and evils that tend to shorten our existence."  - from the Art of Prolonging Life (1797) by the German physician and naturopath, Christopher William Hufeland (1762-1836), edited by William James Erasmus Wilson (1854)