Milton's blindness, the fact of his blindness, has shut out his view of the visible world, which would ordinarily present itself to him through the entrance of his eyes; and this shut-out will enable him, will help him, explore the invisible world of divine truth.

弥尔顿的失明，他失明的这个事实，遮住了,他看具体世界的目光，他通常是通过双眼,这个通道来看具体世界的，不过这种蒙蔽帮助了他，使他能够探索不可见世界中的神圣真理。

耶鲁公开课 - 弥尔顿课程节选

We can measure the heat capacity at constant volume, and now we have another term, and if we can figure out how to measure it, we'll have a complete form for this differential du which will enable us to calculate du for any process.

我们能够测量恒定体积下的热容，这里我们有另一项，如果能够知道怎么测量它，问我们就有了这个完整的微分式,就能够对任何过程计算。

麻省理工公开课 - 热力学与动力学课程节选