The mind is like an umbrella - it only works when it is open.
Sir James Hopwood Jeans (1877 - 1946) was a British physicist, astronomer and mathematician.
He made important contributions in many areas of physics, including Quantum Mechanics, the theory of Radiation and Stellar Evolution.
He made essential contributions to the concept of a Biocentric Culture (see Vital Unconscious and Biocentric Principle).
Albert Einstein: theoretical physicist who is widely regarded as the greatest scientist of the 20th century.
Arthur Stanley Eddington: an astrophysicist who wrote a number of articles explaining Albert Einstein's theory of General Relativity to the English-speaking world.
David Bohm: American physicist who made significant contributions in the fields of theoretical physics, philosophy and neuropsychology.
Erwin Schroedinger: physicist who achieved fame for his contributions to Quantum Mechanics, especially the Schroedinger Equation.
Max Planck: physicist, considered to be the founder of Quantum Mechanics.
Paul Davies: physicist, writer and broadcaster, whose research interests are in the fields of Cosmology, Quantum Field Theory, and Astrobiology.
Werner Heisenberg: physicist and one of the founders of Quantum Mechanics, and acknowledged to be one of the most important physicists of the twentieth century.
Wolfgang Pauli: theoretical physicist noted for his work on Spin Theory, and in particular the discovery of the Pauli Exclusion Principle, which underpins the structure of matter, and (as such) the whole of chemistry.
Wikipedia: http://en.wikipedia.org/wiki/James_Jeans
History of Mathematics: http://www-gap.dcs.st-and.ac.uk/~history/Biographies/Jeans.html
Quotes: http://en.wikiquote.org/wiki/James_Jeans
Introduction to Quantum Mechanics: http://en.wikipedia.org/wiki/Introduction_to_quantum_mechanics
James Jeans, Problems of Cosmogony and Stellar Dynamics
, 1919:
http://openlibrary.org/details/problemsofcosmog00jeanrich