Midway up the slope, however, I staggered to a halt, gasping in the rarefied air, well before I reached the heights where the equations of Einstein and Dirac would have made sense.

• 登到山坡的一半时，我摇摇晃晃的停下来，呼吸稀薄的空气，这时，距离我能够理解爱因斯坦或狄拉克的方程式的高度还相差很远。