The European philosophical tradition, Alfred North Whitehead claimed, consists of a series of footnotes to Plato. If you really want to see Plato’s heirs in action, though, philosophy is the wrong place to look. Look, instead, at physics. Nowhere else is the spirit of the Academy cultivated so assiduously: the maths fetishism, the disdain for mere appearances, the passionate yearning for a timeless, radiant truth.