diff --git a/README.rdoc b/README.rdoc
index fd92d21..a549176 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -8,7 +8,7 @@ There are other ruby machine learning libraries out there:
 * More?
 
 So why another one?
-* You can install it and try it in irb right away. You don't need to learn how a half-dozen classes work to get started:
+* You can install it and try it on irb right away. You do not need to learn how a half-dozen classes work to get started:
         c = Decider.classifier(:spam, :ham)
         c.spam << "some spammy text"
         c.ham << "some hammy goodness"
@@ -50,4 +50,4 @@ Decider has several benchmarks that also double as integration tests. These are
 
 Decider does a lot of math and is fairly computationally intensive, so you want all the extra speed you can get. It is regularly tested with Ruby 1.9 and Jruby. I highly recommend using one of these Ruby implementations if at all possible if you plan on doing anything serious with Decider.
 
-Also keep in mind that your dataset should reside entirely in memory or else you'll hit a brick wall.
\ No newline at end of file
+Also keep in mind that your dataset should reside entirely in memory or else you'll hit a brick wall.