The Adobe flash plug-in is non-free software, and people should not install it, or suggest installing it, or even tell people it exists.

A hacker is someone who enjoys playful cleverness—not necessarily with computers. The programmers in the old MIT free software community of the 60s and 70s referred to themselves as hackers. Around 1980, journalists who discovered the hacker community mistakenly took the term to mean “security breaker.”

Android is very different from the GNU/Linux operating system because it contains very little of GNU. Indeed, just about the only component in common between Android and GNU/Linux is Linux, the kernel.

Proprietary software tends to have malicious features. The point is with a proprietary program, when the users dont have the source code, we can never tell. So you must consider every proprietary program as potential malware.

It's clear that other problems such as [...] the domination of business over government, science, thought, and society, are much bigger than non-free software.

Sharing knowledge is the most fundamental act of friendship. Because it is a way you can give something without loosing something.

Programming is not a science. Programming is a craft.