Who said "The measure of a life is not its duration but its depth."?

This quote is attributed to William Carlos Williams.

The measure of a life is not its duration but its depth. - William Carlos Williams

"The measure of a life is not its duration but its depth."

William Carlos Williams Life

Poet Physician American 1883–1963

"So much depends upon a red wheel barrow glazed with rain water beside the white chickens."

"The pure products of America go crazy."

"No ideas but in things."

"I have discovered that most of the things I've done, I've done for the sake of their form."

"Life is meant to be lived with passion."

"Life is what happens when you're busy making other plans."

"Life is a journey, not a destination."

"Life's too short for regrets."