Mwanandeke Kindembo quote: “The most troubling feeling in the world is to be aware of how much you know. Yet, you don't know how to apply that know…”

“People don't care how much you know until they know how much you care”

Theodore Roosevelt (1858–1919) American politician, 26th president of the United States

Variant: No one cares how much you know, until they know how much you care

“You are wise, and know how to apply it.”

Thomas Brooks (1608–1680) English Puritan

Precious Remedies Against Satan's Devices, 1652

“I don't feel stupid, just inadequate. After three years of studying the law, I'm very much aware of how little I know.”

John Grisham book The Rainmaker

Source: The Rainmaker

“An education isn't how much you have committed to memory, or even how much you know. It's being able to differentiate between what you do know and what you don't. It's knowing where to go to find out what you need to know, and it's knowing how to use the information once you get it.”

Anatole France (1844–1924) French writer

The first two sentences of this statement first appear as attributed to France in the 1990s, but the full statement is earlier attributed to William Feather, as quoted in Telephony, Vol. 150 (1956), p. 23 http://books.google.com/books?id=Wm0jAQAAMAAJ&q=%22being+able+to+differentiate+between+what+you+do+know%22&dq=%22being+able+to+differentiate+between+what+you+do+know%22&hl=en&sa=X&ei=qYJOU9dAzoXRAYumgcAP&ved=0CMsCEOgBMDQ
Misattributed

“An education isn't how much you have committed to memory, or even how much you know. It's being able to differentiate between what you do know and what you don't. It's knowing where to go to find out what you need to know, and it's knowing how to use the information once you get it.”

William Feather (1889–1981) Publisher, Author

As quoted in Telephony, Vol. 150 (1956), p. 23 http://books.google.com/books?id=Wm0jAQAAMAAJ&q=%22being+able+to+differentiate+between+what+you+do+know%22&dq=%22being+able+to+differentiate+between+what+you+do+know%22&hl=en&sa=X&ei=qYJOU9dAzoXRAYumgcAP&ved=0CMsCEOgBMDQ; the first two sentences of this statement began to be attributed to Anatole France in the 1990s, but without any citations of sources.

“What counts for most people in investing is not how much they know, but rather how realistically they define what they don't know.”

Warren Buffett (1930) American business magnate, investor, and philanthropist

http://www.marketwatch.com/story/the-genius-of-warren-buffett-in-23-quotes-2015-08-19 "The genius of Warren Buffett in 23 quotes" MarketWatch (19 August 2015)
Quotes from the press