“Vegetarianism has three things going for it all at once—economics, health and compassion.”
Quoted in "Vegetarianism: Growing Way of Life, Especially Among the Young" https://www.nytimes.com/1975/03/21/archives/vegetarianism-growing-way-of-life-especially-among-the-young.html by Judy Klemesrud, The New York Times (21 March 1975).