Once you latch on to an idea, you're like a bulldog with a bone -- it's pretty hard for you to let go of it. This obsessive thinking actually has some positive applications: You're great at research and investigation, sniffing out the important details and ignoring the rest. You've got a knack for zeroing in on the central issue or crucial point.
You can analyze with the best of them. You grasp other people's motivations and have a gift of understanding. Why, then, are you so mentally stubborn, rigidly clinging to old, outmoded ideas and resisting all intellectual change? The more embedded you become in your ideas and the more dogmatic your attitude, the harder you close the door on intellectual fresh air. This leads to stagnation in the back rooms of your own mind. You can be extremely reserved about communication. You avoid expressing your ideas, even though they are sound, because you don't want to be challenged. This is too bad, because with some adjustment to your mental attitude, you can use words to great purpose.