"A theory can be proved by experiment; but no path leads from experiment to the birth of a theory."
—Manfred Eigen (1927-2019)
"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 (1927-2019)
"In theory, there is no difference between theory and practice. But, in practice, there is."
—Manfred Eigen (1927-2019)
"Sometimes a scream is better than a thesis."
—Manfred Eigen (1927-2019)
"Entropy refers to an average of (physical) states, information to a particular (physical) state"
—Manfred Eigen (1927-2019)