Phase Change Materials

Famous quotes containing the words phase, change and/or materials:

“It no longer makes sense to speak of “feeding problems” or “sleep problems” or “negative behavior” is if they were distinct categories, but to speak of “problems of development” and to search for the meaning of feeding and sleep disturbances or behavior disorders in the developmental phase which has produced them.”
—Selma H. Fraiberg (20th century)

“And I looked to be happy, and I was,
As I said, for a while but I don’t know!
Somehow the change wore out like a prescription.”
—Robert Frost (1874–1963)

“He was no specialist except in the relation of things.... He took most of his materials at second hand.... But no matter who mined the gold, the image and superscription are his.”
—Woodrow Wilson (1856–1924)