At the beginning of a marriage ask yourself whether this woman will be interesting to talk to from now until old age. Everything else in marriage is transitory: most of the time is spent in conversation.
My wife has been my closest friend, my closest advisor. And ... she's not somebody who looks to the limelight, or even is wild about me being in politics. And that's a good reality check on me. When I go home, she wants me to be a good father and a good husband. And everything else is secondary to that.
But even if we take matrimony at its lowest, even if we regard it as no more than a sort of friendship recognised by the police, there must be degrees in the freedom and sympathy realised, and some principle to guide simple folk in their selection.