When reporters asked if he had the stamina for another campaign, his invariable response was: “Watch me.”

“The ball will always find you” is not, of course, an invariable truth.

He reiterated “the invariable battle principle of power for power and head-on contest,” according to the Korean Central News Agency.

Within the shift of generations is the invariable passing of roles from one dancer to the next, and what is vividly apparent is that these ballets were made on specific people.

Certain components like turkey and stuffing may seem invariable, but the preparations are so individualistic and the sides so diverse that pinpoint pairings feel like futile fussiness.