物理系统的对称性反映在其能级的简并性上。

译文：事物众多而智慧有限，有限的智慧不能遍知所有的事物，所以应该顺应事物的本性来治理它们。

We must build networks that are born green, not just made green.

The truth about the world, he said, is that anything is possible. Had you not seen it all from birth and thereby bled it of its strangeness it would appear to you for what it is, a hat trick in a medicine show, a fevered dream, a trance bepopulate with chimeras having neither analogue nor precedent, an itinerant carnival, a migratory tentshow whose ultimate destination after many a pitch in many a mudded field is unspeakable and calamitous beyond reckoning.

膨胀是使宇宙变得平坦、均匀和各向同性的机制。

The UK continental shelf still has an important role to play in our energy security.