files/R-fortunes
It [the effort of learning how to use R] is the price paid, just as the dollars
or euros for a commercial package would be. For that price, I've learnt a great
deal - and not only about R. And I shall remember it when I next have to find a
heavyweight solution for a big problem presented by a small charitable client
with an invisible budget. It's a huge, awe-inspiring package - easier to
perceive as such because the power is not hidden beneath a cosmetic veneer.

Felix Grant
in an article about free statistics software
Scientific Computing World
November 2004