“Knowing when to fight is just as important as knowing how.”

Source: A Hand to Guide Me

Source: Aphorisms and Reflections (1901), p. 22

2014, Young Southeast Asian Leaders Initiative Town Hall Speech (November 2014)
Context: But I also think that from what I've heard, one of the reforms that will need to take place in universities here is to make sure that in all the departments there is the ability for universities and students to shape curriculums and to have access to information from everywhere around the world, and that it's not just a narrow process of indoctrination. Because the best universities are ones that teach you how to think not what to think, right? A good education is not just knowing facts, although you need to know facts. You need to know that two plus two is four; it's not five. That's an important fact. But you also need to know how to ask questions, and how to critically analyze a problem, and how to be able to distinguish between fact and opinion, and how to compare two different ideas.

'Edward Hopper in Saõ Paulo', as cited by William C. Seitz, Smithsonian Press, Washington D.C., 1967
posthumous

As quoted in Treasury of the Christian Faith : An Encyclopedic Handbook of the Range and Witness of Christianity (1949) by Stanley Irving Stuber and Thomas Curtis Clark, p. 807

The Infernal Marriage, part 3 (1834).
Books

Source: "Reid Says He's A Fighter Who'd Rather Dance", All Things Considered, NPR (18 May 2010) https://www.npr.org/templates/story/story.php?storyId=126905578