The fact that the colors in the flower have evolved in order to attract insects to pollinate it is interesting; that means insects can see the colors. That adds a question: does this aesthetic sense we have also exist in lower forms of life?Richard Feynman
The philosophical question before us is, when we make an observation of our track in the past, does the result of our observation become real in the same sense that the final state would be defined if an outside observer were to make the observation?Richard Feynman
When you're young, you look at television and think, there's a conspiracy. The networks have conspired to dumb us down. But when you get a little older, you realize that's not true. The networks are in business to give people exactly what they want.Steve Jobs
Why does the eye see a thing more clearly in dreams than the imagination when awake?Leonardo da Vinci
There are three classes of people: those who see, those who see when they are shown, those who do not see.Leonardo da Vinci
People talk to people who perceive nothing, who have open eyes and see nothing; they shall talk to them and receive no answer; they shall adore those who have ears and hear nothing; they shall burn lamps for those who do not see.Leonardo da Vinci
There is no object so large but that at a great distance from the eye it does not appear smaller than a smaller object near.Leonardo da Vinci
