Whom do you read even though you disagree with them?

This book is a great place for people to begin who want to learn more about strategy. Gray does what he says he is going to do: he talks about modern strategy. He talks about everything from the principles of nuclear strategy to the basic fundamentals of strategy itself, the importance of Clausewitz, and of strategic context. I don’t agree with everything he says, but no strategist agrees with everything another one has to say. But his book is a great place to begin.

The Wall Street Journal editorial page, most of the time an intelligent and essential voice in American political life.

I would include among philosophical writings some liberals. For example, John Stuart Mill, even though I disagree with him profoundly — a very resourceful and intelligent thinker.