"Ever since the birth of the free software movement, its
defenders have struggled to explain just what 'free software' is.
If it is free, how do coders eat? And how do businesses that
support the software--IBM, Hewlett-Packard--make any money from
"The standard answer has been a slogan: 'Think free,' the
movement's founder, Richard Stallman puts it, 'as in free speech,
not free beer...'"