“The Goldberg Variations have always enjoyed a special status, with pianists regarding them as a touchstone of their technical and interpretative powers. At stake are the ability to light up the work from within, a tightrope walk that at the same time describes a vast circle, starting out and returning to a state of apotheotic stillness, the ability to find one’s bearings within a particular concentration of inner and outer complexity, an inner and outer coherence and homogeneity that are all-embracing, the ability, finally, to produce an explosion of inner cells by reduced means and, hence, a particular sensitivity, sinewy tension, and color. The performer must play a game with particular devices, finding solutions to the problems posed by the work not in octave doublings and other playful expedients but in a tightly structured inner rigor and order. What is demanded is a particular form of internalization, of inner and outer lyricism. It is this that makes the Goldberg Variations so unique - and so demanding.”

Epilogue, p. 305.
The Tao of Physics (1975)

The Complete Neurotic's Notebook (1981), Unclassified

Source: As a Man Thinketh

By Still Waters (1906)

As quoted in ‘Interview with J. G. Ballard’, Munich Round Up, 100 (1968), with translation by Dan O’Hara http://www.ballardian.com/munich-round-up-interview-with-jg-ballard
Context: I define Inner Space as an imaginary realm in which on the one hand the outer world of reality, and on the other the inner world of the mind meet and merge. Now, in the landscapes of the surrealist painters, for example, one sees the regions of Inner Space; and increasingly I believe that we will encounter in film and literature scenes which are neither solely realistic nor fantastic. In a sense, it will be a movement in the interzone between both spheres.

Quoted in: Ingo F. Walther Art of the 20th Century (2000), p. 264.

Inner Space http://www.poetrysoup.com/famous/poem/21400/Inner_Space
From the poems written in English

1930s, Mein Weltbild (My World-view) (1931)
Source: The World As I See It
Context: How strange is the lot of us mortals! Each of us is here for a brief sojourn; for what purpose he knows not, though he sometimes thinks he senses it. But without deeper reflection one knows from daily life that one exists for other people — first of all for those upon whose smiles and well-being our own happiness is wholly dependent, and then for the many, unknown to us, to whose destinies we are bound by the ties of sympathy. A hundred times every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving....