The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you do is who you become. Your integrity is your destiny - it is the light that guides your way. - Heraclitus
Martin Fowler is awesome (www.martinfowler.com). Scott Ambler is also good and a rising star in my opinion. And don't forget the three amigo's - Booch, Jacobson and Rumbaugh are pioneers. You may here people refer to Boochisms, thoughts and sayings from Grady Booch, they are very popular and widely used.