Herbert M. Shelton said this quote

The intelligent person, viewing the great number of so-called diseases that arise out of this prostration of the functions of life, and realising that they have one and all grown out of the habitual violations of the laws of life, will recognise at once that the first step in the restoration of health needs must be to make amends at once by the unconditional return to the simplicity and perfect obedience to the laws that have been so perseveringly violated.