CD8 T cells that have fought viral infections retain a 'memory' of the viruses they've encountered, so they can rapidly respond to new infections from those viruses.

People can send cards of condolence to the police department. They can make a gift in memory of the police officer for the child's education. This is a good time to connect with your faith or with your spiritual side and to be at peace with yourself.

The potential applications of this work are wide-ranging.

Yet how much less it were to gain, Though thou hast left me free, The loveliest things that still remain, Than thus remember thee.

I will keep no further journal of that same hesternal torch‐light ; and, to prevent me from returning, like a dog, to the vomit of memory, I tear out the remaining leaves of this volume...

People have no memory of phone numbers now because of the cell phone - their address book is in a cell phone.