I'm passionate by martial arts and FLOSS and I decided to link this two elements in this post. Sorry for the persons who don't like martial metaphor.
This dialog is between an Senseï (Master in Japanese martial arts) and this disciple.
Disciple "Senseï, I wonder every day about open source and freesoftware. Am I the one or the other?"
Senseï "The doubt is the basis of wisdom. When you have no doubts, you know probably nothing. What differences do you make between these ?"