Ezra Pound wrote that “I believe in technique as a test of a man’s sincerity.” This is a declaration of faith in art, in the making of the thing as the place of significance, the place where meaning happens.
Williams proclaimed “no ideas but in things.” This is a different kind of declaration, one that suggests a skepticism about art as art.
Pound and Williams came from a common place, Imagism, which praised precision and clear images over abstractions and decoration. From there, they diverge widely.
Here’s a different kind of apology in the following, late Canto by Pound.
I have tried to write Paradise
Do not move
Let the wind speak
that is paradise.
Let the Gods forgive what I
Let those I love try to forgive
what I have made.