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

search