I'm not sure about "living in the moment." Just what moment would that be? Several have gone by since I started writing a few moments ago. I agree we shouldn't be preoccupied with either past or future, though past and future do often impinge upon the present. At such times, they are another constituent of the present.
Bill Vallicella has written on presentism and anti-presentism and concludes:
ReplyDelete"In my experience, the problems associated with time are the most difficult in all of philosophy."
http://maverickphilosopher.typepad.com/maverick_philosopher/2010/12/what-is-presentism.html