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A theory can be proved by experiment; but no path leads from experiment to the birth of a theory.
Manfred Eigen -
In theory, there is no difference between theory and practice. But, in practice, there is.
Manfred Eigen
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Sometimes a scream is better than a thesis.
Manfred Eigen -
A theory has only the alternative of being right or wrong. A model has a third possibility: it may be right, but irrelevant.
Manfred Eigen -
Play is a phenomenon of nature and has directed the course of the world from the beginning of time: the formation of matter, its organization into living structures as well as the social behavior of man.
Manfred Eigen -
One will only be free when one plays and one's society will become a piece of art
Manfred Eigen