Remarks on Colour line that 'There is no such thing as phenomenology, though there are phenomenological problems.' He was content to regard Goethe's observations as a kind of logic or geometry. Wittgenstein took his examples from the Runge letter included in the "Farbenlehre", e.g. "White is the lightest colour", "There cannot be a transparent white", "There cannot be a reddish green", and so on. The logical status of these propositions in Wittgenstein's investigation, including their relation to physics, was discussed in Jonathan Westphal's "Colour: a Philosophical Introduction" (1991). Although "Remarks on Colour" is considered difficult on account of its fragmentation, his last work,
White (play) to care for the egg, but Wrinkle declares that it must go in the bin. That night, Cotton creeps out of the tent he shares with Wrinkle, and rescues the Red Egg, hiding it inside an empty birdhouse. The next morning, he is horrified to find that objects are beginning to change colour. He tries to hide the objects from Wrinkle, but eventually he is forced to admit what he has done. Wrinkle forgives him, and admits that he secretly loves colour too. They open up the birdhouses to discover that all the eggs have changed from white to pink,