Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I bought my firsy copy in the late 60's early 70's.

Since then I have given away over 100 copies, The last three I gave to my three adult children and they have since given ( shared ) thier copies with others. WHY give it away? Read it and you will understand. Problem is I can't seem to keep a copy for myself but I use what I have read everyday.