That song has to be done quietly, which turns out to be a feat of strength.

He once boasted that he had lifted a mule onto his shoulders and toted her five miles to the doctor, an impressive feat of strength (if true).

There are other routines of spectacular skill here, feats of strength, balance and dexterity, but they're strictly rationed.

Its simplest, quietest moments make much more impact than its most spine-crunching, eye-watering feats of strength and agility.

A reunion would spur them to new feats of strength, he argued.