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Think wrongly if you please, but in all cases, think for yourself.

Reserve your right to think, for even to think wrongly is better than not to think at all.

I have been guilty of wrong thinking.

I don't mind being wrong, and I don't mind changing my mind.

A great many people mistake opinions for thought.

Think your own thoughts.

I very rarely think in words at all. A thought comes, and I may try to express it in words afterwards.

Sometimes I think we're alone. Sometimes I think we're not. In either case, the thought is staggering.

We all think we are right, or we should not believe as we do.