פירוש על ברכות 104:29

To Bet Shammai that bore' can mean "he will create." In all the following passages the participle refers to the past.

Rashi explains: coloured lights, as red, white, green. "[Bet] Hillel considered the different colours of bodies to be due to different sorts of light : whilst [Bet] Shammai attributed colour to the object coloured, and not to the light by means of which we see it" (S. Brodetsky iu J. R. ii. p. 66).