Kant seeks to isolate the moral consciousness, and dwell upon it in its purity, in order that he may demonstrate its Incommensurability with the values of inclination and sensibility.
"The Approach to Philosophy"
Ralph Barton Perry
Pythagoras invented a system which fitted admirably with all the facts he knew, except the Incommensurability of the diagonal of a square and the side; this one little fact stood out, and remained a fact even after Hippasos of Metapontion was drowned for revealing it.
"Our Knowledge of the External World as a Field for Scientific Method in Philosophy"
Bertrand Russell
And for that reason there is radical contingency in progress, Incommensurability between what goes before and what follows-in short, duration.
"Creative Evolution"
Henri Bergson