Inscribed in the forecourt of the temple of Apollo in Delphi were the famous words gnôthi sauton (‘know yourself’) and mêden agan (‘nothing in excess’). They should be re-inscribed in the chamber of the House of Commons, and especially on every piece of paper that passes across the desk of the hapless Jeremy Corbyn.
The ancients were all too aware that life was characterised by man’s weakness, ignorance and vulnerability to sudden, unpredictable reversals of fortune.

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