The Sounds of Taqwa (2006)
Context: Inspiration comes from many places — experiences, places, people, books, and the work of other artists. As a writer, it is important to keep one’s senses open to the world around and then trying to capture those impressions to a page. Writing is sort of a game or puzzle to me — playing with words and concepts to present something new to listeners.
“All artists, whether they know it or not create from a place of inner stillness, a place of no mind.”
Variant: All true artists, whether they know it or not, create from a place of no-mind, from inner stillness.
Source: Stillness Speaks
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Eckhart Tolle 251
German writer 1948Related quotes

Source: Peace Pilgrim: Her Life and Work in Her Own Words (1982), p. 145
Context: In the final analysis you find spiritual truth through your own higher nature. Your higher nature is a drop in the ocean of God - and has access to the ocean. Sometimes your higher nature is awakened through the inspiration of beautiful surroundings or beautiful music, bringing you insights of truth. Sometimes you see the truth written or hear the truth spoken, and your higher nature confirms it. Or you directly perceive the truth from the inside through an awakening of the higher nature, which is my way. All the inspired writing came from the inner source, and you too can receive from that source. Be still and know.

“One cannot alter a condition with the same mind set that created it in the first place.”
Variant: Problems cannot be solved with the same mind set that created them.

Quote in 'Culture: Caspar D. Friedrich and the Wasteland', by Gjermund E. Jansen in Bits of News (3 March 2005) http://www.bitsofnews.com/content/view/154/42/
Variant translation: The heart is the only true source of art, the language of a pure, child-like soul. Any creation not sprung from this origin can only be artifice. Every true work of art is conceived in a hallowed hour and born in a happy one, from an impulse in the artist's heart, often without his knowledge. (as quoted in the article 'Caspar David Friedrich's Medieval Burials', Karl Whittington - http://www.19thc-artworldwide.org/spring12/whittington-on-caspar-david-friedrichs-medieval-burials)
undated
Context: The pure, frank sentiments we hold in our hearts are the only truthful sources of art. A painting which does not take its inspiration from the heart is nothing more than futile juggling. All authentic art is conceived at a sacred moment and nourished in a blessed hour; an inner impulse creates it, often without the artist being aware of it.

Source: The Culture of Cities (1938), Ch. 1, sct. 5

Quote from The Writings of Marcel Duchamp (Marchand du Sel) e.d. Michel Sanouille and Elmer Peterson, New York 1973, pp. 139-140
posthumous

Helpless, from Déjà Vu (1970)
Song lyrics, With Crosby, Stills & Nash
"Living the Mandate", p. 40
The last part of the quote, about those who trade their souls to the 'in between', alludes to Rev 3:15-16.
Unfinished Pilgrimage (1995)