I often drop the following two quotes into talks, to emphasise the fact that what I speak on is borrowed and built from the work of others:
Good Designers Copy, Great Designers Steal - Picasso

Interesting, considering the source of that one. And:
A dwarf on a giant's shoulders sees farther of the two. If I have seen further it is by standing on the shoulders of giants. - Isaac Newton

I mention them to emphasise the importance in business of sharing and collaboration in order to increase speed, productivity, and (ironically) creativity. This is a big reason why we should support Creative Commons.

Check out this vid of the recent iCommons Salon (entitled "Bring and Braai") held in Cape Town, where Lawrence Lessig (CEO of Creative Commons) emphasises the point that digital borrowing and remixing is being criminalized... and what we need to do to make sure that we have the digital freedom to create freely. Jimmy Wales also appears with a call for more African Language contributors on Wikipedia. Heather Ford and I had fun MCing the event :-) :

By the way, Missing Link sponsored and produced this video... They rock!

p.s. 09-f9-11-02-9d-74-e3-5b-d8-41-56-c5-63-56-88-c0 :-p