If there is one thing that all of the world's greatest poker players have in common is that they have a very tight reign on their emotions, and therefore do not allow themselves to give into impulsive decisions or emotive courses of action. Whilst this is commendable and is certainly something to try and emulate where and when possible, it is no means the be all and end all and in order to be truly effective you need to be able to learn the importance of strategy for long term planning.