Quote:Presume In the sense of 'suppose', 'take for granted' these words are more or less synomymous. Presume refers to what is accepted as a fact, believed to be true.
E.g. I presume you are the owner of this house.
Quote:Assume refers to what one postulates(to assume without proof.) or what one views as a posible truth.
E.g. Because you are a professional, I assume that you will beat a novice.
Quick tip.
when Assume is followed by a clause, Assume is followed by "that"
Presume is not.