“All human eyes are useless. You see only what you expect to see, and nothing more; and what is the use of sight like that?”

“Your mind sees more than what your eyes see. your sense of sight can make your fancy fly. there's more to sight than meets the eye.”

“Learning to design is, first of all, learning to see. Designers see more, and more precisely. This is a blessing and a curse — once we have learned to see design, both good and bad, we cannot un-see. The downside is that the more you learn to see, the more you lose your ‘common’ eye, the eye you design for. This can be frustrating for us designers when we work for a customer with a bad eye and strong opinions. But this is no justification for designer arrogance or eye-rolling. Part of our job is to make the invisible visible, to clearly express what we see, feel and do. You can‘t expect to sell what you can’t explain.”

“You see what you expect to see, Severus.”

“For someone so intuitive,” he said, shaking his head, “sometimes you only see what you expect to see.”

“See first, think later, then test. But always see first. Otherwise you will only see what you were expecting. Most scientists forget that.”