Here are a few of my favorites:
Delight Users (apple/steve jobs).
Make a dent in the universe. (apple/jobs).
Stay Hungry, Stay Foolish. (apple/jobs).
Build something people want. (Y Combinator).
don't be evil.(Google).
Any more?
Mission Statement
Our mission...
Build software and provide services that enable organizations to display greater “organizational intelligence;” sense, respond and react to their environment in a more agile manner, and support more adaptive and effective organizational structures.
Democratize access to advanced information processing software by participating in the development of F/OSS software which can be used freely by organizations of any size or nature.
Give back to the world by participating as an ethical member of the world-side free-software / open-source software community.
Create an organization where people dedicated to the advancement of technology will want to work, will be rewarded for doing well, and will receive nurture, guidance, and encouragement.
Promote entrepreneurship as the best tool available for raising the standards of living for people worldwide, by sponsoring educational initiatives and supporting charitable organizations which promote: STEM ( “Science / Technology / Engineering / Math”) education and education on Economics, Business, and Entrepreneurship.
Core Values
We favor...
Transparency and openness... over secrecy and information hiding … in our relationships with each other, our partners, the F/OSS community, and our local communities.
Critical thinking, logic and reason … over … superstition, blind adherence to dogma, and groupthink.
Respect for the individual and their freedom of choice … over … herd mentality, conformance for the sake of conformance, and fear of what we consider different.
Courage and the willingness to commit to our principles … over … knee-jerk reactions, conformance to peer pressure, and compromise of our fundamental values.
The long view and building for the future, while not sacrificing the present … over … short-sighted compromise of our vision and values in order to achieve a tactical objective today.
Being Good … over … Being Evil.
I doubt that's the top corporate motto (I think that would be "making the world more open"), but it's been associated with them quite a bit and it rings true (in both good and bad ways).