“International cooperation is required to prevent anarchic situations developing and the unmasking of ever-present brutality and injustice that results from fear for survival in such situations.”

letter to Bill Vogt, 21 January 1946, quoted in Curt Meine, Aldo Leopold: His Life and Work, p. 478.
1940s

To Herbert Kappler, October 11. Quoted in "The Battle for Rome" - Page 77 - by Robert Katz - History - 2003

Teaching as a Subversive Activity (1969)
Context: Suppose all of the syllabi and curricula and textbooks in the schools disappeared. Suppose all of the standardized tests — city-wide, state-wide, and national — were lost. In other words, suppose that the most common material impeding innovation in the schools simply did not exist. Then suppose that you decided to turn this "catastrophe" into an opportunity to increase the relevance of schools. What would you do? We have a possibility for you to consider: suppose that you decide to have the entire "curriculum" consist of questions. These questions would have to be worth seeking answers to not only from your point of view but, more importantly, from the point of view of the students. In order to get still closer to reality, add the requirement that the questions must help the students to develop and internalize concepts that will help them to survive in the rapidly changing world of the present and future.... What questions would you have on your list? Take a pencil and list your questions...

As quoted in Unexpected News : Reading the Bible with Third World Eyes (1984) by Robert McAfee Brown, p. 19
Context: If you are neutral in situations of injustice, you have chosen the side of the oppressor. If an elephant has its foot on the tail of a mouse and you say that you are neutral, the mouse will not appreciate your neutrality.

Source: The Concept of the Political (1927)

Source: "Overcoming resistance to change." 1948, p. 531

“Shall the Fundamentalists Win?” in Christian Work #102 (10 June 1922), p. 716–722
Context: The present world situation smells to heaven! And now, in the presence of colossal problems, which must be solved in Christ’s name and for Christ’s sake, the Fundamentalists propose to drive out from the Christian churches all the consecrated souls who do not agree with their theory of inspiration. What immeasurable folly!
Well, they are not going to do it; certainly not in this vicinity. I do not even know in this congregation whether anybody has been tempted to be a Fundamentalist. Never in this church have I caught one accent of intolerance. God keep us always so and ever increasing areas of the Christian fellowship; intellectually hospitable, open-minded, liberty-loving, fair, tolerant, not with the tolerance of indifference, as though we did not care about the faith, but because always our major emphasis is upon the weightier matters of the law.

Source: Reminiscences of a Stock Operator (1923), Chapter XV, p. 182