Who said "The imagination does not grow by restriction."?

This quote is attributed to Ezra Pound.

The imagination does not grow by restriction. - Ezra Pound

"The imagination does not grow by restriction."

Ezra Pound Creativity

Poet Critic American 1885–1972

"Make it new."

"The natural object is always the adequate symbol."

"Poetry is a sort of inspired mathematics."

"A poet is a light and winged and holy thing."

"When life gives you lemons, make something beautiful."

"Creativity knows no bounds."

"Creativity is the expression of the soul."

"I'm making this up as I go."