Famous quotes containing the words single and/or crystals:
“His virtues walked their narrow round,
Nor made a pause, nor left a void;
And sure the Eternal Master found
The single talent well employed.”
—Samuel Johnson (1709–1784)
“It is clear that everybody interested in science must be interested in world 3 objects. A physical scientist, to start with, may be interested mainly in world 1 objects—say crystals and X-rays. But very soon he must realize how much depends on our interpretation of the facts, that is, on our theories, and so on world 3 objects. Similarly, a historian of science, or a philosopher interested in science must be largely a student of world 3 objects.”
—Karl Popper (1902–1994)