“The knack is art.”
“The Guide says there is an art to flying", said Ford, "or rather a knack. The knack lies in learning how to throw yourself at the ground and miss.”
“Tact is the knack of making a point without making an enemy.”
“You are blessed with a knack for sucking the wonder out of the extraordinary.”
“Technology is the knack of so arranging the world that we do not experience it.”
“Technology... the knack of so arranging the world that we don't have to experience it.”