Mercator wrote in a letter that sin “comes not from the planets [astrology] nor from any inclination of nature created by God, but only from the free will of man. ”
Ühes kirjas kirjutas ta, et patt „ei tulene planeetidest [astroloogiast] ega loodusest, mille Jumal on loonud, vaid üksnes inimese vabast tahtest ”.