"Memory is a way of holding onto the things you love, the things you are, the things you never want to lose."  - From the television show "The Wonder Years" 

"Memory is a child walking along a seashore.  You never can tell what small pebble it will pick up and store away among its treasured things."  - Pierce Harris, Atlanta Journal 

“Happiness is nothing more than good health and a bad memory.” - Albert Schweitzer

"Many complain of their memory, few of their judgment." - Benjamin Franklin

"We cannot change our memories, but we can change their meaning and the power they have over us" - David Seamands

“The reason people find it so hard to be happy is that they always see the past better than it was, the present worse than it is, and the future less resolved than it will be.”
— Marcel Pagnol

"Never say goodbye because saying goodbye means going away and going away means forgetting" -Peter Pan

  "If you want to keep your memories, you first have to live them." 
-Bob Dylan

"You never know when you're making a memory."
-Chicken Soup for the Teenage Soul    

"One lives in the hope of becoming a memory." -Antonio Porchia

"Rememer everything", she says when only the memory remains"-  Counting Crows    


"You don't have to hold on to the pain to hold on to the memory."
- Janet Jackson    


"Memory... is the diary that we all carry about with us."
-Oscar Wilde

"Right now I’m having amnesia and déjà vu at the same time. I think I’ve forgotten this before." - Steven Wright

"Memories are what warm you up from the inside. But they're also what tear you apart." 
- Haruki Murakami (Kafka on the Shore)
 
"Everyone has a photographic memory... some just don't have film."
- Barrett    

Sources:
http://www.quotegarden.com/memory.html
http://www.dirjournal.com/info/the-best-quotes-of-all-time/
http://www.finestquotes.com/select_quote-category-Judgement-page-0.htm
http://q.uote.it/
http://thinkexist.com/quotation/we_cannot_change_our_memories-but_we_can_change/190336.html