Keeping your body healthy is an expression of gratitude to the whole cosmos—the trees, the clouds, everything. – Thích Nhất Hạnh

Hormones, vitamines, stimulants and depressives are oils upon the creaky machinery of life. Principal item, however, is the machinery. – Martin H. Fischer (1879–1962)

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