What part of our lives are brainwashed, all, some, none?

...what is more important is that one should not allow oneself to go mad in the search for that answer to the mystery of life. Life for life sake I say. "Eat, drink and be merry for tomorrow we die."

““Myself when young did eagerly frequent----Doctor and Saint, and heard great argument---About it and about: but evermore---Came out by the same door as in I went.”

“Some for the Glories of This World; and some---Sigh for the Prophet's Paradise to come---Ah, take the Cash, and let the Credit go---Nor heed the music of a distant Drum!”

“Waste not your Hour, nor in the vain pursuit---Of This and That endeavour and dispute---Better be merry with the fruitful Grape---Than sadden after none, or bitter, Fruit.”

“For "Is" and "Is - Not" though with Rule and Line---And "Up - and - down" by Logic I define----Of all that one should care to fathom---I Was never deep in anything but - Wine.”

“And much as Wine has play'd the Infidel---And robb'd me of my Robe of Honour, Well----I often wonder what the Vintners buy---One half so precious as the ware they sell.”

You and Omar Khayam, eh, Arg?: