This is my philosophy prof's favorite book. I have consulted my classmates, making sure i was not the only one drowning in the vastness of inferiority. Heidegger dangles before us this intriguing and maddening possibility of a hierarchy of thinking, that we as humans are capable of and yet do not engage in this richer thinking. He presents questions, which often forces one's brain to play tag with itself, as to what is called thinking, what is that to which we call thinking or what calls forth thinking, the traditions required to think, etc (and I am not getting this verbatim at all). Lastly, Heidegger practically admits that it is near impossible to attain this Master Thinking, which would also incorporate memory (but not the way we think of memory as recalling, but more encompassing than this, more present) -- it is difficult to ascertain what it looks like, this thinking that Heidegger suggests, as well as trying to convey the entire idea in a nutshell.