Phase Change Materials

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

“The problem of the twentieth century is the problem of the color-line—the relation of the darker to the lighter races of men in Asia and Africa, in America and the islands of the sea. It was a phase of this problem that caused the Civil War.”
—W.E.B. (William Edward Burghardt)

“I don’t think that a leader can control to any great extent his destiny. Very seldom can he step in and change the situation if the forces of history are running in another direction.”
—Richard M. Nixon (1913–1995)

“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)