Time is a central and classical theme in philosophy. It can be taken up from several angles, including epistemology (how do we know of the existence of a past or a future?)
photo credit If you think back to your childhood, I’m sure you had a secret book — maybe one that even had “My Diary” splashed across the front — that held your deepest, darkest secrets. You could tell your journal everything, but as a little girl, you didn’t invest too much in writing it.