Who said "The worker's struggle is the struggle for human dignity."?

This quote is attributed to Hart Crane.

The worker's struggle is the struggle for human dignity. - Hart Crane

"The worker's struggle is the struggle for human dignity."

Hart Crane Work

Poet American 1899–1932

"I am unequal to any comparison. Whether I write or act or live, I do so to the full as always against all odds."

"The most beautiful thing we can experience is the mysterious."

"My life is a contradiction of disciplines and wildness."

"I have known metal and the love of living."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."