There was a famous Irish terrorist who once summed up the point very beautifully. He said, "The thing is, about the British government, is, is that it's got to be lucky all the time, and we only have to be lucky once."
曾有个著名的爱尔兰恐怖分子 总结的很恰当。他说， “对于英国政府而言，他们必须一直幸运 而我们只要时来运转一次就够了”