He devoted himself to perspective and to architecture, his works show with what profit.

Michael Angelo did not content himself with knowing only the main features of architecture, but wished also to know about everything that could be useful in any way in that profession, such as ties, platforms, scaffolding, and such like, he knew as much of these things as those who profess nothing else, which was exemplified in the time of Julius II.

in this wise.

When Michael Angelo had to paint the ceiling of the Sistine Chapel the Pope ordered Bramante to erect the scaffolding.

For all the architect he was he did not know how to do it, but pierced the vault in many places, letting down certain ropes through these holes to sling the platform.