Source: This quote is from an interview of Walt Disney by Cecil B. DeMille (December 26, 1938).

Cecil: In their written form, Walt, fairy tales are supposedly only for children. But when you bring one to the screen, it captivates everyone. Age, language, race make no difference. What’s the secret?
Walt Disney: Well, here’s half an answer. Over at our place we’re sure of just one thing — everybody in the world was once a child. We grow up, our personalities change, but in every one of us, something remains of our childhood.

Read Complete Interview: Click Here