As we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don't know we don't know.

#641

Guy de Maupassant • Albert Einstein • Friedrich Nietzsche • Confucius • Voltaire • Mike Monteiro • Henry David Thoreau • Kurt D. Cobain • Steven Wright • Elwyn Brooks "E. B." White • Anna Eleanor Roosevelt • anonymous • Martin Luther King Jr. • Marshall McLuhan • Zig Ziglar • Theodor Seuss Geisel • Kahlil Gibran • Miguel de Cervantes Saavedra • John Maeda • Winston Churchill • Mahatma Gandhi • Pablo Picasso • Toni Morrison • Rabindranath Tagore

search