“In a crystal we have the clear evidence of the existence of a formative life-principle, and though we cannot understand the life of a crystal, it is none the less a living being.”

Quotes, DNC Address (2004)
Context: We have to be crystal clear about the threat we face from terrorism. It is deadly. It is real. It is imminent. But in order to protect our people, shouldn't we focus on the real source of this threat: the group that attacked us and is trying to attack us again: Al Qaeda, headed by Osama bin Laden? Wouldn't we be safer with a President who didn't insist on confusing Al Qaeda with Iraq? Doesn't that divert too much of our attention away from the principal danger?

As quoted in The Times [London] (18 May 1990)
1990s

To a humble physicist's mind, these are very interesting and complicated objects; they constitute one of the most fascinating and complex material structures by which inanimate nature puzzles his wits. Yet, compared with the aperiodic crystal, they are rather plain and dull. The difference in structure is of the same kind as that between an ordinary wallpaper in which the same pattern is repeated again and again in regular periodicity and a masterpiece of embroidery, say a Raphael tapestry, which shows no dull repetition, but an elaborate, coherent, meaningful design traced by the great master.
What Is Life? (1944)

Aspects of 20th Century Music (1975) by Gary Wittlich and Richard P. DeLone
Context: There is an idea, the basis of an internal structure, expanded and split into different shapes or groups of sound constantly changing in shape, direction, and speed, attracted and repulsed by various forces. The form of the work is a consequence of this interaction. Possible musical forms are as limitless as the exterior forms of crystals.

Poems and Ballads (1866-89), The Triumph of Time
Context: p>We had stood as the sure stars stand, and moved
As the moon moves, loving the world; and seen
Grief collapse as a thing disproved,
Death consume as a thing unclean.
Twain halves of a perfect heart, made fast
Soul to soul while the years fell past;
Had you loved me once, as you have not loved;
Had the chance been with us that has not been.I have put my days and dreams out of mind,
Days that are over, dreams that are done.
Though we seek life through, we shall surely find
There is none of them clear to us now, not one.</p

The Rebel (1951)

The Bait, stanza 1

"Simple Life"
A Picnic of Poems in Allah's Green Garden (2011)