Seeing what is in common: Suppose I show someone various coloured pictures and say, “The colour which you see in all of them || a coloured comic and say: “The colour which you see in all these pictures is called ‘ochre’.” – That || This is an explanation which the other person understands when he looks and sees || is understood by finding what is || it is that's in common to those || these pictures. He can then gaze || look at what is common || this common element, or point to it.

Ts-226,52

Compare with that || this: – I show him rectangles || polygons of various shapes, all painted in the same colour, and say, || : “What these have in common with one another is called ‘ochre’”. –
And compare with that || this: – I show him samples of various shades of blue and say, || : “The colour which is common to them all I call ‘blue’”.

(2015–) Wittgenstein Source Bergen Nachlass Edition (WS-BNE). Edited by the Wittgenstein Archives at the University of Bergen under the direction of Alois Pichler. In: Wittgenstein Source, curated by Alois Pichler (2009–) and Joseph Wang-Kathrein (2020–). (N) Bergen: WAB.