Richard Feynman

Physics is like sex . . . it may give some practical results, but that's not why we do it.

C.S. Lewis, Mere Christianity

Christianity thinks of human individuals not as mere members of a group or items in a list, but as organs in a body -- different from one another and each contributing what no other could. When you find yourself wanting to turn your children, or pupils, or even your neighbours, into people exactly like yourself, remember that God probably never meant them to be that. You and they are different organs, intended to do different things. On the other hand, when you are tempted not to bother about someone else's troubles because they are "no business of yours," remember that though he is different from you he is part of the same organism as you. If you forget that he belongs to the same organism as yourself you will become an Individualist. If you forget that he is a different organ from you, if you want to suppress differences and make people all alike, you will become a Totalitarian. But a Christian must not be either a Totalitarian or an Individualist.

I feel a strong desire to tell you -- and I expect you feel a strong desire to tell me -- which of these two errors is the worse. That is the devil getting at us. He always sends errors into the world in pairs -- pairs of opposites. And he always encourages us to spend a lot of time thinking which is the worse. You see why, of course? He relies on your extra dislike of the one error to draw you gradually into the opposite one. But do not let us be fooled. We have to keep our eyes on the goal and go straight through between both errors. We have no other concern than that with either of them.

[Book IV, Chapter 6, "Two Notes"]

C.S. Lewis, Mere Christianity

Suppose I am writing a novel. I write "Mary laid down her work; next moment came a knock at the door!" For Mary who has to live in the imaginary time of my story there is no interval between putting down the work and hearing the knock. But I, who am Mary's maker, do not live in that imaginary time at all. Between writing the first half of that sentence and the second, I might sit down for three hours and think steadily about Mary. I could think about Mary as if she were the only character in the book and for as long as I pleased, and the hours I spent in doing so would not appear in Mary's time (the time inside the story) at all.

[Book IV, Chapter 3, "Time and Beyond Time"]

C.S. Lewis, Mere Christianity

The Christian attitude does not mean that there is anything wrong about sexual pleasure, any more than about the pleasure of eating. It means that you must not isolate that pleasure and try to get it by itself, any more than you ought to try to get the pleasures of taste without swallowing and digesting, by chewing things and spitting them out again.

[Book III, Chapter 6, "Christian Marriage"]

C.S. Lewis, Mere Christianity

The sins of the flesh are bad, but they are the least bad of all sins. All the worst pleasures are purely spiritual: the pleasure of putting other people in the wrong, of bossing and patronising and spoiling sport, and back-biting; the pleasures of power, of hatred. For there are two things inside me, competing with the human self which I must try to become. They are the Animal self, and the Diabolical self. The Diabolical self is the worse of the two. That is why a cold, self-righteous prig who goes regularly to church may be far nearer to hell than a prostitute. But, of course, it is better to be neither.

[Book III, Chapter 5, "Sexual Morality"]

C.S. Lewis, Mere Christianity

People often think of Christian morality as a kind of bargain in which God says, "If you keep a lot of rules I'll reward you, and if you don't I'll do the other thing." I do not think that is the best way of looking at it. I would much rather say that every time you make a choice you are turning the central part of you, the part of you that chooses, into something a little different from what it was before. And taking your life as a whole, with all your innumerable choices, all your life long you are slowly turning this central thing either into a heavenly creature or into a hellish creature: either into a creature that is in harmony with God, and with other creatures, and with itself, or else into one that is in a state of war and hatred with God, and with its fellow-creatures, and with itself. To be the one kind of creature is heaven: that is, it is joy and peace and knowledge and power. To be the other means madness, horror, idiocy, rage, impotence, and eternal loneliness. Each of us at each moment is progressing to teh one state or the other.

[Book III, Chapter 4, "Morality and Psychoanalysis"]

Samuel Johnson

People need to be reminded more often than they need to be instructed.

C.S. Lewis, Mere Christianity

Ninety-nine percent of the things you believe are believed on authority. I believe there is such a place as New York. I have not seen it myself. I could not prove by abstract reasoning that there must be such a place. I believe it because reliable people have told me so. The ordinary man believes in the Solar System, atoms, evolution, and the circulation of the blood on authority -- because the scientists say so. Every historical statement in the world is believed on authority. None of us has seen the Norman Conquest or the defeat of the Armada. None of us could prove them by pure logic as you prove a thing in mathematics. We believe them simply because people who did see them have left writings that tell us about them: in fact, on authority. A man who jibbed at authority in other things as some people do in religion would have to be content to know nothing all his life.

[Book II, Chapter 5, "The Practical Conclusion"]

C.S. Lewis, Mere Christianity

We can all understand how a man forgives offences against himself. You tread on my toe and I forgive you, you steal my money and I forgive you. But what should we make of a man, himself unrobbed and untrodden on, who announced that he forgave you for treading on other men's toes and stealing other men's money? Asinine fatuity is the kindest description we should give of his conduct. Yet this is what Jesus did. He told people that their sins were forgiven, and never waited to consult all the other people whome their sins had undoubtedly injured. He unhesitatingly behaved as if He was the party chiefly concerned, the person chiefly offended in all the offences. This makes sense only if He really was the God whose laws are broken and whose love is wounded in every sin. In the mouth of any speaker who is not God, these words would imply what I can only regard as a silliness and conceit unrivalled by any other character in history.
[. . .]
I am trying here to prevent anyone saying the really foolish thing that people often say about Him: "I'm ready to accept Jesus as a great moral teacher, but I don't accept His claim to be God." That is the one thing we must not say. A man who was merely a man and said the sort of things Jesus said would not be a great moral teacher. He would be either a lunatic -- on a level with the man who says he is a poached egg -- or else he would be the Devil of Hell. You must make your choice. Either this man was, and is the Son of God: or else a madman or something worse. You can shut Him up for a fool, you can spit at Him and kill Him as a demon; or you can fall at His feet and call Him Lord and God. But let us not come with any patronising nonsense about Him being a great human teacher. He has not left that open to us. He did not intend to.

[Book II, Chapter 3, "The Shocking Alternative"]

C.S. Lewis, Mere Christianity

When I was an atheist I had to try to persuade myself that most of the human race have always been wrong about the question that mattered to them most; when I became a Christian I was able to take a more liberal view.

[Book II, Chapter 1, "The Rival Conceptions of God"]

C.S. Lewis, Mere Christianity

We all want progress. But progress means getting nearer to the place where you want to be. And if you have taken a wrong turning, then to go forward does not get you any nearer. If you are on the wrong road, progress means doing an about-turn and walking back to the right road; and in that case the man who turns back soonest is the most progressive man.

[Book I, Chapter 5, "We Have Cause to Be Uneasy"]