No theory ever solves all the puzzles with which it is confronted at a given time; nor are the solutions already achieved often perfect.


The Structure of Scientific Revolutions, Chapter XII (p. 146), The University of Chicago Press. 1970


No theory ever solves all the puzzles with which it is confronted at a given time; nor are the solutions already achieved often perfect.

No theory ever solves all the puzzles with which it is confronted at a given time; nor are the solutions already achieved often perfect.

No theory ever solves all the puzzles with which it is confronted at a given time; nor are the solutions already achieved often perfect.

No theory ever solves all the puzzles with which it is confronted at a given time; nor are the solutions already achieved often perfect.