Mr. Lawrence Lessig is a founder of Stanford Center for Internet and Society. He's also a chairman for the Creative Commons organization.
Lessig is one of the most effective speakers in the world, a professor at Stanford, who tries to make this world a better place from a standpoint of stupidity in terms of the copyright law.
The following is published on the CC's site:
We use private rights to create public goods: creative works set free for certain uses. ... We work to offer creators a best-of-both-worlds way to protect their works while encouraging certain uses of them — to declare “some rights reserved.”
Therefore Creative Commons stands for the mantra of some rights reserved and not all rights reserved in terms of meaningful usage of digital technology.
Being a libertarian myself, I cannot oppose these stands. Balance and compromise are good things for content and intellectual products, such as software.
Watch his masterpiece, delivered at TED.