Who said "Honest disagreement is often a good sign of progress."?

This quote is attributed to Mahatma Gandhi.

Honest disagreement is often a good sign of progress. - Mahatma Gandhi

"Honest disagreement is often a good sign of progress."

Mahatma Gandhi Truth

Independence Leader, Activist Indian 1869–1948

"In a gentle way, you can shake the world."

"Live as if you were to die tomorrow. Learn as if you were to live forever."

"The future depends on what you do today."

"Nonviolence is a weapon of the strong."

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."