Split the lines up with a newline character, a carriage return or both. It worked for me with just newlines on a Mac. You could try one or the other or both. CHAR(10) for newline and CHAR(13) for carriage return.
=concatenate("If you notice this notice",CHAR(10),"You will notice",CHAR(10),"That this notice",CHAR(10),"Is not worth noticing")
In Layout:
