While trading we have to follow few rules and without following those rules there is no way to be a successful one except a successful by chance. There are lots of rules of them greedy plays a vital role. While trading never be greedy. If you become greedy while trading then you can be assured that there is 90% possibility to be a lessor.
Greed is one of the tools that needs to be used very careful and in small portions, because without it completely you cannot gain a significant profits, and with the abandance of it, you cannot handle those profits properly.