The past is hidden somewhere outside the realm, beyond the reach of intellect, in some material object (in the sensation which that material object will give us) which we do not suspect.
That is the outstanding answer I've ever heard.
不要等待机会,创造机会。
Don’t say anything about someone in email you would not be comfortable saying to them directly, because eventually they will read it.
I am not wise, but I have learned a great deal simply by staying alive.