Market volatility has returned and so has faith in the value investing ethos embraced by billionaire Seth Klarman. His legendary, out-of-print book explains why he never listens to the market either way.

· Billionaire Seth Klarman's investing philosophy has been in something of a rut for years.
· But comparing his recent writings to investors to his nearly 30-year-old book show that he hasn't changed the way he does things — and value might be making a return as the markets tumble due to coronavirus fears.
· Klarman has...