Dec 21 2011: Yes, it definitely did and continues to do so successfully where there is mutual trust. The fact that one is committed to someone and vice versa makes him/her connect to his/her future self with clarity and help rise above mood swings and impulses, which are inevitable in anybody's life. Commitment is a continuous hope and hope is what life is.
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A comment on Conversation: Do you think marriage, as a social commitment device, still works? Or did it ever work?