"It being far more reasonable to believe, that wise Man, who was... of the Truth of the Phenomenon as we are, was likewise no less capable of understanding the true Reason thereof founded on the Elasticity or natural Contraction of the Fibres whereof the human Body is composed... A Belief that Health is the principal part or Basis of human Happiness, and that it depends on a Harmony, that is, a Correspondence of the several Motions with the Powers that produce them..."