“For those of you in the administration, who are coming after me … remember, you've broken three [of the 10 Commandments], let's not make it four; thou shalt not kill.”

Letter To President Wilson http://archive.org/details/LetterToWilson1917 (June 5, 1917) by Ben Salmon
Context: Regardless of nationality, all men are brothers. God is "our Father who art in heaven." The commandment "Thou shalt not kill" is unconditional and inexorable. … The lowly Nazarene taught us the doctrine of non-resistance, and so convinced was he of the soundness of that doctrine that he sealed his belief with death on the cross. … When human law conflicts with Divine law, my duty is clear. Conscience, my infallible guide, impels me to tell you that prison, death, or both, are infinitely preferable to joining any branch of the Army.

Source: The Tao of Willie: A Guide to the Happiness in Your Heart [With Headphones]

Address before the Federal Council of Churches of Christ in America. December 6, 1933 http://www.presidency.ucsb.edu/ws/index.php?pid=14574
1930s

Vous tenez à l’exemple [de la peine de mort]. Pourquoi? Pour ce qu’il enseigne. Que voulez-vous enseigner avec votre exemple? Qu’il ne faut pas tuer. Et comment enseignez-vous qu’il ne faut pas tuer? En tuant.
"Plaidoyer contre la peine de mort" http://fr.wikisource.org/wiki/Plaidoyer_contre_la_peine_de_mort_-_Victor_Hugo [An argument against the death penalty], Assemblée Constituante, Paris (15 September 1848)

"The Ten Commandments"
Complaints and Grievances (2001)

Source: The Duke and I

As quoted in The Mammoth Book of Zingers, Quips, and One-Liners (2004) by Geoff Tibballs, p. 206
Context: I have ten commandments. The first nine are, thou shalt not bore. The tenth is, thou shalt have right of final cut.

Source: The Tempest

To The New York Legal Aid Society (16 February 1951).
Extra-judicial writings