The Great IRQ Debate in the Linux kernel

http://hi.baidu.com/hotjuly/blog/item/6e2d1dd5a580afc450da4ba3.html

If people take our code, they'd better behave according to our rules. But we shouldn't have to behave according to the RIAA rules just because we _listen_ to their music. Similarly, nobody should be forced to behave according to our rules just because they
_use_ our system.

There's a big difference between "copy" and "use". It's exactly the same issue whether it's music or code. You can't re-distribute other peoples music (becuase it's _their_ copyright), but they shouldn't put limits on how you personally _use_ it
(because it's _your_ life).

Same goes for code. Copyright is about _distribution_, not about use. We shouldn't limit how people use the code.