Harold Morowitz was a professor of molecular biophysics and biochemistry at Yale who studied the application of thermodynamics to living systems.

He was closely associated with the Santa Fe Institute since 1987, where he was Chairman Emeritus of the Science Board. He also served as the founding editor of the open access journal Complexity.

The thesis of his 1968 book Energy Flow in Biology was that "the energy that flows through a system acts to organize that system." The system increases in complexity.

Morowitz became well known for this thesis. It was famously quoted on the inside front cover of The Last Whole Earth Catalog in 1971.

But it is not simply energy that is involved, as Morowitz really knows and later made clear in his most entertaining 1985 book Mayonnaise and the Origin of Life. In the chapter titled "Entropy Anyone?," he wrote,

Nineteenth-century biologists, fresh from the triumphs of the theory of evolution, were haffied by the seeming contradiction between the degradative thrust of the second law and the progressive direction of evolution toward higher organization. They wondered if life, with all its anabolic processes, was a violation o( the known principles of physics. The seeming paradox was resolved by the perceptive Ludwig Boltzmann, who pointed out that the surface of the earth and the biosphere were kept far· from equilibrium respectively by the constant flow of sunlight and by continuing photosynthesis. Such systems under an energy flow were not constrained to undergo an increase in entropy but could indeed experience a decrease to more ordered states. Life was fully consistent with the laws of thermodynamics

Mayonnaise and the Origin of Life, p.220

In the 1980's, Morowitz was a fierce critic of Creationism. He testified at "McLean v. Arkansas" (nicknamed "Scopes Trial II") that creationism has no scientific basis and so should not be taught as science in public schools.

When he was called to give expert testimony Morowitz repeated his claim that it was Ludwig Boltzmann who had resolved the confusion concerning the applicability of the second law of thermodynamics to living systems. Boltzmann, said Morowitz, had made clear that the Earth, rather than being an isolated system, is an open system undergoing a flow of solar energy from the sun.

This is all quite correct, but historically this idea was first made clear by Erwin Schrödinger in his 1944 book "What Is Life?", p.74, where he did not refer to Boltzmann.

Morowitz' Mayonnaise is notoriously free of bibliographic references, so we don't know his sources.