Difference between good & great programmers [closed]

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I've开发者_运维问答 read this quote somewhere: "Good programmers write good code. Great programmers steal great code"

What is the difference between "good" and "great"? Great is better than good? And to be honest... I don't understand this quote...

PS: maybe the title is not explicit and my English not correct, please correct it to be proper English, thanks a lot!

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Great programmers know that their brand-new code will likely never be as good as something that has been around for a while, presumably battle-tested in a number of different situations.