He understood this thousands of years ago, but people still refuse to understand it now in the age of neuroscience. If you can understand what you "were" before you were born (nothing), you already understand what you are after you die.
WAKE up! The time is NOW to be the ultimate truth seeker for we are in the age of information! Ignorance is a choice but only if you wish to remain asleep, and therefore uninformed, as to how our world is being controlled by a group of evil criminals!