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How do you decide whether you ought to do something? Chances are you’ve employed statements about how things are or have been as the basis for making a judgment call. The 18th-century Scottish philosopher David Hume forcefully argued against this approach. According to ‘Hume’s law’, also known as the ‘is/ought problem’, determining what you ought to do based on what is represents a logical mistake because there’s a gap that reason cannot bridge between the facts of the world and the values you might espouse.
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Knowledge
An Indigenous myth and a geological survey elicit two ways of knowing one place
4 minutes
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Neuroscience
Dog vision is a trendy topic, but what can we really know about how they see?
11 minutes
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Biology
An elegy for a dying microbe explores what we really mean by ‘death’
9 minutes
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Art
Creating art that was aware of itself – and the viewer – made Manet the first modernist
15 minutes
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Political philosophy
Beyond the veil – what rules would govern John Rawls’s ‘realistic Utopia’?
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Thinkers and theories
A rare female scholar of the Roman Empire, Hypatia lived and died as a secular voice
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Architecture
The celebrated architect who took inspiration from sitting, waiting and contemplating
29 minutes
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Rituals and celebrations
A beginner’s guide to a joyful Persian tradition of spring renewal and rebirth
3 minutes
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Metaphysics
Simple entities in universal harmony – Leibniz’s evocative perspective on reality
4 minutes