Do Your Own Thinking
What I really want to say to you is don’t let anybody else do your thinking for you. Don’t buy [believe] anything and defend it just because it is told to you. Take a critical attitude to everything, including everything I say. I don’t think there’s any other safeguard except a fierce determination that you will do your own thinking. Don’t get emotionally attached to any set of ideas, including my ideas, so firmly that you can’t question whether they are leading you astray. I love to have you support what I say, but certainly if a Marx or a Buddha can mislead, I can, too. Do your own thinking. I think that’s the most important exhortation I can make. Trust your own thinking.
From page 25 of Logical Thinking about a Future Society
(Present Time 187, April 2017)