Who said "Non-violence requires a very high quality of mind."?

This quote is attributed to Mahatma Gandhi.

Non-violence requires a very high quality of mind. - Mahatma Gandhi

"Non-violence requires a very high quality of mind."

Mahatma Gandhi Peace

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."

"Peace comes from a good conscience."

"Life is too short to hold grudges."

"A man's home is his sanctuary. It should be treated as such."

"The world is chaotic enough. At least your home should make sense."