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

This quote is attributed to Amy Lowell.

The measure of a life is not its length, but its depth. - Amy Lowell

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

Amy Lowell Life

Poet Critic American 1874–1925

"Poetry is the clear expression of mixed feelings."

"All books are either dreams or swords."

"The world breaks everyone, and afterward, many are strong at the broken places."

"Beauty is something wonderful and strange that the artist brings into the world."

"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."