Slogans
Wikipedia is many things, but the closest to an official slogan is "The Free Encyclopedia".
Others:
- Knowledge Shared
Logos
The original logo:
In November 2001, Wikipedians began suggesting new logos; within two weeks the logo contributed by The Cunctator was chosen.
http://www.wikipedia.com/wiki.png
Smaller:
http://meta.wikipedia.com/upload/WPLogosmall.png
The quotation:
- Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.