“Men without their choice derive benefits from that association; without their choice they are subjected to duties in consequence of these benefits; and without their choice they enter into a virtual obligation as binding as any that is actual. Look through the whole of life and the whole system of duties. Much the strongest moral obligations are such as were never the results of our option. I allow, that if no supreme ruler exists, wise to form, and potent to enforce, the moral law, there is no sanction to any contract, virtual or even actual, against the will of prevalent power. On that hypothesis, let any set of men be strong enough to set their duties at defiance, and they cease to be duties any longer.”

On whether an artist should paint about injustices in “Interview With Fernando Botero” https://www.huffpost.com/entry/interview-with-fernando-botero_b_6795782 in HuffPost (2017 Dec 6)

The Queen v. Instan (1893), L. R. 1 Q. B. [1893], p. 453.

Source: Father and Child Reunion (2001), p. 167.

Variant: The important thing is moral choice. Evil has to exist along with good, in order that moral choice may operate. Life is sustained by the grinding opposition of moral entities.
Source: A Clockwork Orange

Chap. 3. Religious Liberty and Freedom of Speech
Democracy's Discontent (1996)

King v. Waddington (1800), 1 East, 158.

Source: Keeping The Dead

"Saving the Rabbit from the Fox", p. 247
Morals, Reason, and Animals (1987)

Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995), New Rules for the New Economy: 10 Radical Strategies for a Connected World (1999)