Ubuntu Linux is perhaps the most popular version of the Linux Operating system. It's free of charge, runs fast and mostly without a hitch. It's secure, comes with a friendly support staff (which is 99% volunteer, and quite helpful) and has an amazing variety of programs available for download straight from a main menu ... also free of charge.
Perhaps it is Ubuntu Linux's motto which is the best reflection of it's quality: Ubuntu, Linux for Humans.
The motto says 2 very powerful things:
1.) Silently, it says that all other versions of Linux aren't for humans, they're for programmers and geeks (who are either ultra-humans or sub-humans depending on your perspective). Also by making the operating system free and open-source, Ubuntu is silently saying that other operating systems are either for utter domination like Microsoft or for the elite and snobby like Apple. Therefore the motto summarizes that humans are those who want a cheap, well supported, superior (but not snotty), customizeable, and, above all, usable operating system for their computer.
2.) The motto also says that Ubuntu's primary reason for existance is to be used by actual people (i.e. Homo Sapiens) at whatever task they are performing. This means that it is not meant for business alone, graphic artists alone, engineers alone, scientists alone, machines alone, servers alone, or anything in singular mode. Rather it a universal human tool. Human's are complex, at least 50% irrational, and variegated creatures... therefore a product designed for humans has to be ultra-flexible and powerful. Ubuntu claims to be that in the motto.
Even the word human as opposed to people, person, man, woman, worker, business, internet or etc. seems to be chosen to connote the organic, earthy and complex qualities of humankind.
This short but powerful statement forces one to ask of their own products, widgets and businesses ... is it designed for humans? Humans buy products, humans innovate and humans run the economy. Machines don't invent themselves and businesses don't run themselves. Business men are still men. Even doctors, lawyers and academics are people too (well maybe not lawyers).
People are the foundation of humanity (how often do we forget that?).
So we must ask often... is my widget, product or business designed for humans?
