Z:gnu-www-ja-the-law-of-success-2--fd2fe0-So the definition of free soft/en

So the definition of free software is the four freedoms that are needed for the users to have control of their computing. Freedom zero is the freedom to run the program. Freedom one is the freedom to study the source code and change it so it does your computing as you wish. Freedom two is the freedom to help others, which is the freedom to redistribute exact copies. And freedom three is the freedom to contribute to your community, which is the freedom to distribute copies of your modified versions. So these four freedoms ensure that the users, both individually and collectively, control the program. If the users don't control the program then the program controls the users. That's proprietary software and that is what makes it evil.