Destroy the roots of the healthiest plants, their heads will droop and die. Many excellent qualities of the mind have their roots, in fact, in the body: their summits, which adorn the spiritual being, the mind, will wither, if we neglect the soil of these valuable plants… – C.G. Salzmann, Gymnastics for Youth: or, A Practical Guide to Healthful and Amus

Every man is the builder of a Temple called his body, nor can he get off by hammering marble instead. – Henry David Thoreau

If the mind, that rules the body, ever so far forgets itself as to trample on its slave, the slave is never generous enough to forgive the injury, but will rise and smite the oppressor. – Henry Wadsworth Longfellow