For more practical persons I recommend skipping the historical parts of philosophy and go straight to Bayesianism. I recommend "Rationality" by E. Yudkowsky as an entry point, "Probabilistic Inference" by J. Pearl, "Artificial Intelligence" by Russel & Norvig for the theory and "Formal Theory of Creativity & Fun & Intrinsic Motivation" by J. Schmidhuber for inspiration.
[1]: http://people.idsia.ch/~juergen/creativity.html