[Simon Schaffer argues that the really critical achievement of science lies not in its scepticism but in its ability to create and maintain trust]
The basic question, which collective public knowledge has to solve in every culture, is: who should I believe and why? Almost everything anyone knows about the world they know on trust. Almost all our knowledge is testimony. Very little of what we know and believe about the world is based entirely and absolutely on our own empiricism. Empiricism is the philosophical position that my knowledge comes from my experience. And there is a problem there, because most of what I know and believe I haven't directly experienced. I have experienced through others.
[....]
Adam Smith, the great Scottish economist of the 18th century puts this wonderfully in one of his lectures he says: "If you reckon up what you know about the world you will see that most of what you know has been purchased, like your shoes and socks, from those whose business it is to put these things on the market" And I think that's still absolutely true. If I reflect about what I know about the world, what I think is true, almost all of it is based on what I have heard or been told or have read, not what I have directly experienced.
I think a good slogan is: "The western natural sciences work very well partly because they organise trust extremely efficiently"
[....]
If you look round a working laboratory, likely it will be full of machinery and equipment not made by the people in the lab. They have to rely on the people who have made those devices, or made those observations, or calibrated the content of those bottles, or designed that piece of software. So a laboratory is a place connected through an immensely complicated networks to the labours of many, many other people. And if those people's work can be trusted, then what goes on in that lab can be trusted.