Our faces are immutable, as Sarah Downey, a lawyer who works for Abine, a company that offers free and paid tools to guard online identity, points out.
Perhaps this isn't the end of days for "Agent Carter," but should the worst come to pass, Peggy Carter and Whitney Frost will remain as savvy, strong television, dames as immutable as any shining star of Hollywood's Golden Age.
It is a law as immutable as gravity: if you know anything about a story there will always be a small factual error that could have been corrected had the journalist taken a little more trouble.
And he thus disproved an axiom of photography that had seemed as immutable as the laws of physics: when buying a lens for a D.S.L.R. camera, "low cost" and "ultra-wide aperture" are mutually exclusive terms.
Here he is again, in a uniform and a helmet, throwing a football, as natural and immutable as weather itself.
"It's a truth as immutable as addiction itself or the human thirst for pleasure and escape, impossible to fumigate from our beings".
But isn't it modern practice to retire at the usual age, or is a constitutional monarch as immutable as the pope?
What's alarming is her unyielding belief in honour and vengeance, her faith in a code that's as immutable as the landscape itself.
This truth is as immutable as the advent of electricity or the internal combustion engine, yet at a magnitude that dwarfs these previous revolutions.
But diamonds are not as immutable as the speed of light, notes Dr Cohen.
