This meme was posted in a Facebook Group:
Typically, here would be an opportunity to launch into excessive amounts of text and documentation. Since most of us now have the reading concentration of a squirrel, here is the modern-day response (probably still too long):
The first quote is supposed to prove Luther's acceptance of Mary's immaculate conception. The tedious details of why it doesn't prove it are found here. The quote appears to be an insertion into Luther's sermon by the editor who first published it in 1527. The quote was taken out of the sermon the following year by Luther.The second quote was written before Luther's position on Mary's sinlessness changed. Rather than discussing Mary’s sinlessness, Luther's later writings insist Christ’s sinlessness was due entirely to the miraculous work of the Holy Spirit during his conception, not Mary's.