Julian Baggini and guests Clare Chambers and Lucy O’Brien explore how the exemplary habits and principles of the best philosophers can help us to think better. Their focus today is on the principles of charity and sincerity, and the need to abide in uncertainty. They take as their cue Baggini’s new book How to Think Like a Philosopher, in which he offers 12 key principles for a more humane, balanced and rational approach to thinking.