height, width, depth

"The only thing new in the world is the history you don't know."
- Harry Truman

father of history

“Of all men’s miseries the bitterest is this: to know so much and to have control over nothing.”
― Herodotus

great wall of wisdom

"He who knows all the answers hasn't been asked all the questions."
- Confucius

It's one thing to be ignorant ...

" ... but if you're ignorant AND indignant, I'm going to be all up in your situation."
- Neil deGrasse Tyson on including those who insist the earth is just 6000 years old

"It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so."
- Mark Twain

"There's a finite amount of knowledge and everyday we're getting closer to it."
- Bertrand Russell as paraphrased by Conrad Black

"I am the wisest man alive, for I know one thing, and that is that I know nothing."
- Socrates

Image source here.

"We don't know a millionth of one percent about anything."

- Thomas Edison

"Information is not knowledge."
- Einstein