Can I just say?

You're about to listen to a BBC podcast.

It's such a wonderful listen.

So nice.

There are loads more like it on BBC sounds.

Different paces, different heights.

The roof is buckling.

Where you can also listen to live sports commentary.

It's right foot goes for goal.

And then enjoy even more podcasts full of analysis and reaction to the big stories.

The stat that is astonishing is they ended with the lowest amount of possession.

And she's had to live with that.

So if you love sport, a passion, it's almost like a religion.

Listen on BBC Sounds.

Sort of expecting that every week now.

Knowledge is made by oblivion.

And to purchase a clear and warrantable body of truth, we must

forget and part with much we know.

They're the words of a 17th century doctor called Sir Thomas Brown, a physician, an experimenter,

a literary man, an expert witness at a witch trial in which two old women were accused of causing their young neighbours

to vomit nails and pins. Tonight's edition of free thinking will try to put this dictum into practice

and enter a world in which knowledge is partial, where the limits of empirical inquiry are close,

...