They didn't put two and two together. They didn't even know what they knew. I don't know what's the matter with people, they don't learn by understan… - Richard Feynman

I don’t know what’s the matter with people: they don’t learn by understanding; they learn by some other way — by rote, or something. Their knowledge is so fragile!

don’t know what’s the matter with people: they don’t learn by understanding; they learn by some other way — by rote,

I don’t know what’s the matter with people: they don’t learn by understanding; they learn by some other way — by rote, or something.

I don't know what's the matter with people: they don't learn by understanding; they learn by some other way — by rote or something. Their knowledge is so fragile!

You see, one thing is, I can live with doubt and uncertainty and not knowing. I think it’s much more interesting to live not knowing than to have answers which might be wrong.

While I am describing to you how Nature works, you won't understand why Nature works that way. But you see, nobody understands that.

Why are the theories of physics so similar in their structure?
There are a number of possibilities. The first is the limited imagination of physicists: when we see a new phenomenon, we try to fit it into the framework we already have—until we have made enough experiments, we don't know that it doesn't work. So when some fool physicist gives a lecture at UCLA in 1983 and says, “This is the way it works, and look how wonderfully similar the theories are,” it's not because Nature is really similar; it's because the physicists have only been able to think of the same damn thing, over and over again.
Another possibility is that it is the same damn thing over and over again—that Nature has only one way of doing things, and She repeats her story from time to time.
A third possibility is that things look similar because they are aspects of the same thing—some larger picture underneath, from which things can be broken into parts that look different, like fingers on the same hand. Many physicists are working very hard trying to put together a grand picture that unifies everything into one super-duper model. It's a delightful game, but at present time none of the speculators agree with any of the other speculators as to what the grand picture is.