This one is authentic.

He did write that one--a fact which stands undisputed; he wrote the whole of it; he wrote the whole of it out of his own head.

He commanded that this work of art be engraved upon his tomb, and he was obeyed.

There it abides to this day.

This is it: Good friend for Iesus sake forbeare To digg the dust encloased heare: Blest be ye man yt spares thes stones And curst be he yt moves my bones.
In the list as above set down, will be found _every positively known_ fact of Shakespeare's life, lean and meagre as the invoice is.