19. The physicist rightly dreads precise argument,since an argument that is convincing only if it is precise loses all its force if the assumptions on which it is based are slightly changed,whereas an argument that is convincing though imprecise may well be stable under small perturbations of its underlying assumptions.
可能我是有点钻牛角尖了,但这里为什么要用be动词的原型呢?be前面不是情态动词啊?但是感觉may well is读起来没有may well be顺,不知道为什么,请大家指点