A Quote by George Polya

If the proof starts from axioms, distinguishes several cases, and takes thirteen lines in the text book ... it may give the youngsters the impression that mathematics consists in proving the most obvious things in the least obvious way.
Mathematics consists in proving the most obvious thing in the least obvious way.
There are and can be only two ways of searching into and discovering truth. The one flies from the senses and particulars to the most general axioms, and from these principles, the truth of which it takes for settled and immovable, proceeds to judgment and to the discovery of middle axioms. And this way is now in fashion. The other derives axioms from the senses and particulars, rising by a gradual and unbroken ascent, so that it arrives at the most general axioms last of all. This is the true way, but as yet untried.
The mathematician starts with a few propositions, the proof of which is so obvious that they are called self-evident, and the rest of his work consists of subtle deductions from them. The teaching of languages, at any rate as ordinarily practiced, is of the same general nature authority and tradition furnish the data, and the mental operations are deductive.
Apart from the most obvious cases, like the Oriental Bittersweet vine, escaped from private gardens and smothering the mountains one acre at a time, the most painful proof of man's destruction is not what you can see right in front of you; it's what you will never see again.
It is shocking that young people should be addling their brains over mere logical subtleties in Euclid's Elements, trying to understand the proof of one obvious fact in terms of something equally .. obvious.
Anybody can be specific and obvious. That's always been the easy way. It's not that it's so difficult to be unspecific and less obvious; it's just that there's nothing, absolutely nothing, to be specific and obvious about.
People tell me this is obvious. But it's ok to be obvious. Knowing and doing are different. Many people know many obvious things they completely fail to do, despite their knowledge.
The most obvious feature of the brain is that it is not homogeneous, but composed of different regions. There are no intrinsic moving parts, no obvious way of knowing where to start to understand what is actually happening, or what functions are taking place.
I deal with the obvious. I present, reiterate, and glorify the obvious - because the obvious is what people need to be told.
'Obvious' is the most dangerous word in mathematics.
Obvious is the most dangerous word in mathematics.
Success is the study of the obvious. Everyone should take Obvious 1 and Obvious 2 in school.
The obvious choice isn't always the best choice, but sometimes, by golly, it is. I don't stop looking as soon I find an obvious answer, but if I go on looking, and the obvious-seeming answer still seems obvious, I don't feel guilty about keeping it.
It's obvious that five days is just enough to give one a false impression of any country.
Do the obvious, you won't forget it. Do the obvious, you won't regret it. Obvious, obvious, obvious.
A lot of the things I do are obvious things that for some reason are not done. I could never figure this out. Why don't people do the obvious?
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