That's actually right, because we make our judgement not only into trading, but many things by using our emotions and feelings. If we combined them with using our knowledge, then that's the time we could make our judgement. Sometimes feelings and emotion would contrast to the knowledge we have, because we can't always rely into our guts if we don't have any idea into a certain thing which we can apply into trading. If we can't control our emotions and not having enough knowledge it would affect our judgement causes for us to get losses. And I agree to your statement that greediness could give you bad calls by just repeating the same method which is not applicable in trading since it's volatile.