The physicist must have a vivid imagination, but it must be disciplined by rigorous logic.
物理学家必须拥有生动的想象力，但必须受到严格逻辑的约束。
"Writing is a form of therapy; sometimes I wonder how all those who do not write, compose, or paint can manage to escape the madness, melancholia, the panic and fear which is inherent in a human situation."
释义：福可能变成祸，祸也可能转为福，变化没有尽头。
自然状态有一种自然法规来管理它，这使每个人都有义务，而这种法则就是理性，它教导所有愿意咨询它的人...没有人应该侵犯他人的生命、健康、自由或财产。
预测未来的最好方式就是去创造未来。