Martin HeideggerIn existographies, Martin Heidegger (1889-1976) (IQ:165|#413) [RGM:170|1,500+] (Gottlieb 1000:914) (Perry 80:4|La) (HCR:14) (FA:105) (Stokes 100:71) (Perry 80:28) (GPhE:31) (CR:41) German atheistic existentialist philosopher (Sartre, 1945); influenced deeply by Nietzsche; teacher of Hannah Arendt; noted, predominately, for his 1927 Being and Time, in which he suggest that the meaning of our being must be tied up with time, i.e. that we are temporal beings, a logic somehow based on critique of Immanuel Kant and a synthesis of Friedrich Nietzsche. [1]

Time | Being
Heidegger is popularly-known for theory of being as time as the definition of existence; a statement of his views as follows:

“Being and time determine each other reciprocally, but in such a manner that neither can the former – being – be addressed as something temporal nor can the latter – time – be addressed as a being.”
— Martin Heidegger (c.1927), “Time and Being” [3]

The following is a more recent abstract attempt:

“The basic idea of Being and Time is extremely simple: being is time. That is, what it means for a human being to be is to exist temporally in the stretch between birth and death. Being is time and time is finite, it comes to an end with our death. Therefore, if we want to understand what it means to be an authentic human being, then it is essential that we constantly project our lives onto the horizon of our death, what Heidegger calls 'being-towards-death'.”
— Simon Critchley (2009) (Ѻ)

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Atheism | Existence
Heidegger is classified, by Jean-Paul Sartre (1945), as an “atheistic existentialist” philosopher; the following is an example quote

Philosophy will not be able to bring about a direct change of the present state of the world. This is true not only of philosophy but of all merely human meditations and endeavors. Only a god can still save us. I think the only possibility of salvation left to us is to prepare readiness, through thinking and poetry, for the appearance of the god or for the absence of the god during the decline; so that we do not, simply put, die meaningless deaths, but that when we decline, we decline in the face of the absent god.”
— Martin Heidegger (1966), interview with Spiegel (Ѻ)

This seems to be addressing the Nietzschean void (see: god void)

Ontic opening
Heidegger, supposedly, is noted for originating the “ontic opening” theory.

Non-experiencing stone
Heidegger, as cited by Wolfe von Lenkiewicz (2011), at some point, introduced his “non-experiencing stone” distinction between a human or "being" and a stone (see: rock vs. human).

De Lange
In 2001, South African chemical physicist Adriaan de Lange stated that some of his “creative collapse” free energy theory are a complexity theory version of Heidegger and Jacques Derrida’s “deconstruction”; which he summarizes as follows: [2]

“When the system does not have sufficient free energy F to drive its entropy production and thus organisational changes, there are two options to obtain further free energy. One option is that it can be imported from an external source like animals eating food or plants absorbing sunlight. The other option is that it can be liberated from within by giving up some of its organisation through a process which I call the "creative collapse" (the complexity version of Heidegger's and Derrida's "deconstruction"). Taking animals or plants as example, they will then use their own tissues as source of free energy rather than eating food.”

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Quotes | By
The following are noted quotes:

“Thinkers are indeed decidedly called ‘thinkers’ because, as it is said, they think ‘out of’ themselves and in their very thinking put themselves at stake. The thinker answers questions he himself has raised. Thinkers to not proclaim ‘revelation’ from a god. They do not report the inspirations of a goddess. They state their own insights.”
— Martin Heidegger (1943), “Parmenides and Heraclitus”, lecture course, University of Freidburg [6]

“The most thought-provoking thing in our thought-provoking time is that we are still not thinking.”
— Martin Heidegger (1952), What is Called Thinking (Ѻ)

“Thus not ‘dead nature’. A stone, for example, is not dead.”
— Martin Heidegger (1967), dialogue with Eugen Fink on Heraclitus fragments [5]

References
1. Sartre, Jean-Paul. (1945). “Existentialism is a Humanism” (pg. 20), Lecture at Club Maintenant, Oct 29, Yale University Press, 2007.
2. De Lange, A.M. (2001). “Fitness Landscape and other Landscapes” (threads: LO27222), 09/03/01 – Learning-org.com.
3. Heidegger, Martin. (c.1927). “Time and Being” in: On Time and Being (Zur Sache des Denkens) (Translator and Introduction: Joan Stambaugh) (pg. 3). Max Niemeyer Verlag: Tubingen, 1969. University of Chicago Press, 2002.
4. Anon. (2016). “What is Being?” (Ѻ), Hmolpedia thread, May 8.
5. Heidegger, Martin and Fink, Eugen. (1967). Heraclitus Seminar (translator: Charles Seibert) (stone, pg. 120). Northwestern University Press, 1993.
6. Heidegger, Martin. (1943). “Parmenides and Heraclitus”, lecture course, University of Freidburg, Winter Semester; published as volume 54 of Collected Works; in: Parmenides (translators: Andre Schuwer and Richard Rojcewicz) (thinkers, pg. 5). Indiana University Press, 1992.

External links
Martin Heidegger – Wikipedia.

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