At the recent NA-CAP, I had the good fortune to meet the legendary
Richard Stallman, who gave an impassionated defense of free software. According to him, it is unethical to use proprietary software. Regardless of the degree to which you agree with him, Stallman is worth listening to and meeting in person. Failing that, read some of his works. I find his energy, clarity, and integrity inspiring.
In case you don't know, Stallman is a former MIT researcher who quit MIT to found of the
GNU Project, launched in 1984 to develop the free software operating system
GNU.
Here is how the
Free Software Foundation defines free software:
<<"Free software'' is a matter of liberty, not price. To understand the concept, you should think of "free'' as in "free speech,'' not as in "free beer.''
Free software is a matter of the users' freedom to run, copy, distribute, study, change and improve the software. More precisely, it refers to four kinds of freedom, for the users of the software:
- The freedom to run the program, for any purpose (freedom 0).
- The freedom to study how the program works, and adapt it to your needs (freedom 1). Access to the source code is a precondition for this.
- The freedom to redistribute copies so you can help your neighbor (freedom 2).
- The freedom to improve the program, and release your improvements to the public, so that the whole community benefits (freedom 3). Access to the source code is a precondition for this.
A program is free software if users have all of these freedoms... [more on their website]>>