A very interesting line by Mrs. Clark (Susan Sarandon) on Why People get married in film "Shall We Dance" :
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"Because we need a witness to our lives. There is a billion people on the planet, what does anyone's life really mean? But in a marriage, you are promising to care about everything, the good things, the bad things, the terrible things, the mundane things - all of it, all the time, everyday.
Your life will not go unnoticed because I will notice it. Your life will not go unwitnessed because I will be your witness."