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" The Great German general Erwin Rommel once made a distinction between a gamble and a risk. Both cases involve an action with only a chance of success, a chance that is heightened by acting with boldness. The difference is that with a risk, if you lose, you can recover: your reputation will suffer no long-term damage, your resources will not be depleted, and you can return to your original position with acceptable losses. With a gamble, on the other hand, defeat can lead to a slew of problems that are likely to spiral out of control. With a gamble there tend to be too many variables to complicate the picture down the road if things go on. The problem goes further: if you encounter difficulties in a gamble, it becomes harder to pull out—you realize that the stakes are too high; you cannot afford to lose. So you try harder to rescue the situation, often making it worse and sinking deeper in to the hole that you cannot get out of. People are drawn into gambles by their emotions: they see only glittering prospects if they win and ignore the ominous consequences if the lose. Taking risks is essential; gambling is foolhardy. It can be years before you recover from a gamble, if you recover at all. "
― Robert Greene , The 33 Strategies of War