Authors:

The less you can enjoy, the poorer, the scantier yourself - the more you can enjoy, the richer, the more vigorous.

"Aphorisms on man. Translated from the original manuscript of the Rev. John Caspar Lavater, citizen of Zuric" by Johann Kaspar Lavater, New-York: re-printed by T. and J. Swords, for Berry and Rogers, Hanover-Square, 1790.
The less you can enjoy, the poorer, the scantier yourself - the more you can enjoy, the richer, the more vigorous.