That's the reason why having "enough" is important for a gambler. Because for people who do not have a sense of “enough” in themselves, they will always feel deprived even when they have won a lot. They will always be driven to continue gambling and get more money, because in their minds it is not enough and they are very eager to get more. What happens is that most of these gamblers lose money that they could have withdrawn if they understood the meaning of the word enough, and in the end they will only blame the situation where they become unlucky.