Why isn't sight like touch, diffused through all parts of the body "that she might look at will through every pore?"

为什么视力不能像触觉那样遍布人体各个部位,那样“她就能看到身体的每个毛孔“

耶鲁公开课 - 弥尔顿课程节选

So obvious and so easy to be quench't And not as feeling through all parts diffus'd That she might look at will through every pore?

如此显露，如此易受损伤,为什么不像触觉，分布在全身各部,可以通过每一根毛细管去自由观看？

耶鲁公开课 - 弥尔顿课程节选