Who said "The window of opportunity opens both ways."?

This quote is attributed to Marshall Field.

The window of opportunity opens both ways. - Marshall Field

"The window of opportunity opens both ways."

Marshall Field Change

Retail Pioneer American 1834–1906

"Give the lady what she wants."

"Those who cannot remember the past are condemned to repeat it."

"Observe, record, tabulate, communicate."

"The customer is always right."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."