But her thoughts are often of the past. That evanescent, pervasive, slippery internal landscape known to no one else, that vast accretion of data on which you depend - without it you would not be yourself. Impossible to share and no one else could view it anyway. The past is out ultimate privacy; we pile it up, year by year, decade by decade, it stows itself away, with its perverse random recall system.

Author: Penelope Lively