“Why is there anything at all rather than nothing whatsoever?”
De rerum originatione radicali (1697); reprinted in God. Guil. Leibnitii Opera philosophica quae exstant latina, gallica, germanica omniaː 1 http://books.google.gr/books?id=Huv3Q0IimL0C&vq= (1840), p. 148
Cf. Martin Heidegger, What is Metaphysics? (1929)ː "Warum ist überhaupt Seiendes und nicht vielmehr Nichts? Das ist die Frage."
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cur aliquid potius extiterit quam nihil
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Gottfried Leibniz 29
German mathematician and philosopher 1646–1716Related quotes

Source: The Sacred Depths of Nature (1998), p. 167
Context: We are, each one of us, ordained to live out our lives in the context of ultimate questions, such as:
Why is there anything at all, rather than nothing?
Where did the laws of physics come from?
Why does the universe seem so strange?
My response to such questions has been to articulate a covenant with Mystery. Others, of course, prefer to respond with answers, answers that often include a concept of god. These answers are by definition beliefs since they can neither be proven nor refuted. They may be gleaned from existing faith traditions or from personal search. God may be apprehended as a remote Author without present-day agency, or as an interested Presence with whom one can form a relationship, or as pantheistic — Inherent in All Things.
The opportunity to develop personal beliefs in response to questions of ultimacy, including the active decision to hold no Beliefs at all, is central to the human experience. The important part, I believe, is that the questions be openly encountered. To take the universe on — to ask Why Are Things As They Are? — is to generate the foundation for everything else.

“Why are there beings at all, and why not rather nothing? That is the question.”
Warum ist überhaupt Seiendes und nicht vielmehr Nichts? Das ist die Frage.
What is Metaphysics? (1929), p. 110
Cf. Gottfried Leibniz, De rerum originatione radicali (1697)ː "cur aliquid potius extiterit quam nihil."
Source: Introduction to Metaphysics

Quoted in an article, "Why Is There Something Rather Than Nothing?" http://www.csicop.org/sb/show/why_is_there_something_rather_than_nothing, by Victor Stenger (June 2006).

Joseph Pilsduski. Interview by Dymitr Merejkowsky, 1921. Translated from the Russian by Harriet E. Kennedy, B.A., London & Edinburgh, Sampson Low, Marston & Co., Ltd., 1921. Quoted from this site http://members.lycos.co.uk/jozefpilsudski/dm.html.
Attributed

On his points of making Expelled: No Intelligence Allowed http://www.youtube.com/watch?v=gYL9uuqgwpw
Source: Our Christ : The Revolt of the Mystical Genius (1921), pp. 165-166
Context: The difference between Christ and the other prophets is threefold:
1. Unlike the other prophets, he has no connection with politics and is not a people's tribune. In the Gospels, we find temporal circumstances only as background, Christ having no relationship to them at all. He kept his thoughts unmuddled by the world — "Get thee behind me, Satan!" — he was and remained truly free of the world.
2. He preaches no religious superficialities whatsoever, nothing at all of worship, nothing of God; he is truly godless.
3. Neither for earth nor heaven does he preach any coming kingdom. "But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you" ( Mt. 6:33 http://bible.cc/matthew/6-33.htm). The kingdom, however, is nothing that is to come; it is here, it is within you ( Lk. 17:21 http://bible.cc/luke/17-21.htm). It is the Spirit of innerness as it is alive in him, the truly blessed man; it is the essence, ever being and never changing. It is also the essence of this our life, not merely an appendix granted it by some other essence, for which we would have to fulfill certain conditions.