“If I were making a world and could arrange it as I wanted to, only humanitarians would be allowed to practice vivisection. Only those would be allowed to practice it who would be as economical in inflicting pain on others as they would be in inflicting it on themselves. Vivisection in the hands of those without sympathy, in the hands of those who are still in the mists of anthropocentrism, will always be abused, will always be, what it is to-day, largely a pastime and a hobby.”
"Discovering Darwin", Proceedings of the International Anti-Vivisection and Animal Protection congress, held at Washington, D.C. December 8th to 11th, 1913 (1913), p. 158The only consistent attitude, since Darwin established the unity of life (and the attitude we shall assume, if we ever become really civilised), is the attitude of universal gentleness and humanity.
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J. Howard Moore 183
1862–1916Related quotes

Quoted in "St. Josephine Bakhita, Virgin", Vatican News https://www.vaticannews.va/en/saints/02/08/st--josephine-bakhita--virgin.html.
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Letter https://books.google.it/books?id=-rgnCgAAQBAJ&pg=PT370 to Sidney G. Trist, Editor of the Animals' Friend Magazine, in his capacity as Secretary of the London Anti-Vivisection Society (26 May 1899), in Mark Twain's Notebooks, ed. Carlo De Vito (Black Dog & Leventhal, 2015)

Wollen wir etwa die Pädagogik den Philosophen in die Hände spielen? Nichts weniger als das! Sie würden sich ungeschickt genug benehmen. Denen allein werde sie anvertraut, die mehr sind als Philosophen, darum aber auch unendlich mehr als Humanisten oder Realisten.
Source: The False Principle of our Education (1842), p. 19

Deeds Rather Than Words (1963)
Context: To me, today, at age sixty-one, all prayer, by the humble or highly placed, has one thing in common: supplication for strength and inspiration to carry on the best human impulses which should bind us together for a better world. Without such inspiration, we would rapidly deteriorate and finally perish. But in our troubled time, the right of men to think and worship as their conscience dictates is being sorely pressed. We can retain these privileges only by being constantly on guard and fighting off any encroachment on these precepts. To retreat from any of the principles handed down by our forefathers, who shed their blood for the ideals we still embrace, would be a complete victory for those who would destroy liberty and justice for the individual.