http://www.nytimes.com/2008/09/05/science/05brain.html?_r=1&oref=slogin
"There is no pain so great as the memory of joy in present grief."
-Aeschylus
"Memory is funny. Once you hit a vein the problem is not how to remember but how to control the flow."
-Tobias Wolff
"An angel has no memory."
-Terry Southern "Happiness? That's nothing more than good health and a poor memory."
-Albert Schweitzer
Yoga Sutras of Patanjali:
1.5
Vrittayah pancatayah klishta aklishta: Thought-forms are categorized into five varieties, of which some are painful and others are non-painful (neutral).
1.6
Pramana viparyaya vikalpa nidra smritayah: These (the categories) are: Correct knowing; Incorrect knowing; Imagination; Sleep; Memory.
1.11
Anubhuta-vishayasampramoshah smritih: Memory is the recollecting or retaining of previously experienced impressions.