Programming is not a science. Programming is a craft.

The GNU GPL was not designed to be "open source".

Also, because schools must teach the spirit of goodwill, the habit of helping others around you, every class should have this rule: students, if you bring software to class you may not keep it for yourself.

Talking about freedom, about ethical issues, about responsibilities as well as convenience, is asking people to think about things they might prefer to ignore, such as whether their conduct is ethical. This can trigger discomfort, and some people may simply close their minds to it. It does not follow that we ought to stop talking about these things.

Playfully doing something difficult, whether useful or not, that is hacking.

If you want to accomplish something in the world, idealism is not enough - you need to choose a method that works to achieve the goal.

The idea that laws decide what is right or wrong is mistaken in general. Laws are, at their best, an attempt to achieve justice; to say that laws define justice or ethical conduct is turning things upside down.