痕跡...

"being" leaves traces / marks in your life and in others, the most obvious thing is that skin is no long white and smooth with time...

life is no longer a piece of white paper, there are memories, there are write-offs... even if i use pencil on it, eraser can't erase the traces of having been written...

knowing is knowing, experience is experience, you can't un-know a person or un-experience a situation, it's happened, it's there...

somebody says, you are a summation of your experience/past
somebody says, i think, therefore i exist

痕跡, 可以是很浪漫的; 痕跡的國語讀音比廣東話好聽; 痕 - 沒有烙印那麼深刻... A trace, a shadow: 春夢了無痕 vanish like a spring dream without a trace;月影花痕 the shadow of the moon and flowers -- http://humanum.arts.cuhk.edu.hk/Lexis/Lindict/ 跡 - traces, impressions, nothing tangible,
卻有跡可尋