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I don't consider myself to be that radical a thinker.

There is nothing radical about Obama except the fact of who he is.

Radical simply means 'grasping things at the root.'

By 'radical,' I understand one who goes too far; by 'conservative', one who does not go far enough; by 'reactionary', one who won't go at all.

I am a radical.

To be radical, an empiricism must neither admit into its constructions any element that is not directly experienced, nor exclude from them any element that is directly experienced.

I wouldn't call it radical; I would call it enthusiasm for progress.

What I do isn't radical. It's just distinct in small ways.

You don't fight radical conservatism with not-quite-so radical conservatism.