How important is friendship?

A man is judged by the company he keeps, but it’s not always clear what the verdict will be when he chooses to retain a friend who behaves abominably. Consorting with rogues is hardly the hallmark of an honourable gent but, at the same time, someone who doesn’t stand by his pals when the chips are down is not considered much of a mate. So what’s a true friend to do?

Latest FT Weekend Magazine column (20/21 April)