Chapter 23

But now, if seeds Receive no property of colour, and yet Be still endowed with variable forms From which all kinds of colours they beget And vary (by reason that ever it matters much With what seeds, and in what positions joined, And what the motions that they give and get), Forthwith most easily thou mayst devise Why what was black of hue an hour ago Can of a sudden like the marble gleam,-- As ocean, when the high winds have upheaved Its level plains, is chang…