“ There was a blithe certainty that came from first comprehending the full Einstein field equations, arabesques of Greek letters clinging tenuously to the page, a gossamer web. They seemed insubstantial when you first saw them, a string of squiggles. Yet to follow the delicate tensors as they contracted, as the superscripts paired with subscripts, collapsing mathematically into concrete classical entities — potential; mass; forces vectoring in a curved geometry — that was a sublime experience… ”
- Gregory Benford Timescape- Copy
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“ Our revels now are ended. These our actors, As I foretold you, were all spirits, and Are melted into air, into thin air: And, like the baseless fabric of this vision, The cloud-capp'd towers, the gorgeous palaces, The solemn temples, the great globe itself, Yea, all which it inherit, shall dissolve, And, like this insubstantial pageant faded, Leave not a rack behind… ”
- William Shakespeare- Copy
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“ Weak arguments are often thrust before my path; but although they are most insubstantial, it is not easy to destroy them. There is not a more difficult feat known than to cut through a cushion with a sword. ”
- Richard Whately- Copy
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