Good design is often slightly funny. This one may not always be true. But Durer’s engravings and Saarinen’s womb chair and the Pantheon and the original Porsche 911 all seem to me slightly funny. Godel’s incompleteness theorem seems like a practical joke.

I think it’s because humor is related to strength. To have a sense of humor is to be strong: to keep one’s sense of humor is to shrug off misfortunes, and to lose one’s sense of humor is to be wounded by them. And so the mark— or at least the prerogative— of strength is not to take oneself too seriously. The confident will often, like swallows, seem to be making fun of the whole process slightly, as Hitchcock does in his films or Bruegel in his paintings— or Shakespeare, for that matter.

-Paul Graham

It seems strange to have to emphasize simplicity. You’d think simple would be the default. Ornate is more work. But something seems to come over people when they try to be creative. Beginning writers adopt a pompous tone that doesn’t sound anything like the way they speak. Designers trying to be artistic resort to swooshes and curlicues. Painters discover that they’re expressionists. It’s all evasion. Underneath the long words or the “expressive” brush strokes, there is not much going on, and that’s frightening.

When you’re forced to be simple, you’re forced to face the real problem. When you can’t deliver ornament, you have to deliver substance.