The largely objective character of beauty is further indicated by the fact that to a considerable extent beauty is the expression of health. A well and harmoniously developed body, tense muscles, an elastic and finely toned skin, bright eyes, grace and animation of carriage- all these things which are essential to beauty are the conditions of health.

Studies in the Psychology of Sex: Sexual selection in man: I. Touch. II. Smell. III. Hearing. IV. Vision (ed. 1905)