Ian Hacking said this quote

Both [Quine and Feyerabend] want to revise a version of positivism. Quine started with the Vienna Circle, and Feyerabend with the Copenhagen school of quantum mechanics. Both the Circle and the school have been called children of Ernst Mach; if so, the philosophies of Feyerabend and Quine must be his grandchildren.

~ Ian Hacking

The best reaction to a paradox is to invent a genuinely new and deep idea.

~ Ian Hacking

Labels such as ‘‘the culture wars,’’ ‘‘the science wars,’’ or ‘‘the Freud wars’’ are now widely used to refer to some of the disagreements thatplague contemporary intellectual life ... But I would like to register a gentle protest. Metaphors influence the mind in many unnoticed ways. The willingness to describe fierce disagreement in terms of the metaphors of war makes the very existence of real wars seem more natural, more inevitable,more a part of the human condition. It also betrays us into an insensibility toward the very idea of war, so that we are less prone to be aware of how totally disgusting real wars really are.

~ Ian Hacking

Every moral teacher or spiritual adviser gives injunctions about how to live wisely and well. But life is so complicated and full of uncertainty that rules seldom tell us quite what to do.

~ Ian Hacking