In the early 1900s Arthur S. Eddington established the current theoretical basis for the operation of the sun and other stars. Generally, Eddington asserted that main sequence stars generate energy under a condition of hydrostatic equilibrium without contraction. Eddington is one of the more significant solar theorists of the last hundred years. His assumptions are firmly fixed in modern models such that they are often believed to be beyond reasonable doubt, virtually on a par with basic laws of physics. Further, his Quaker background is sometimes emphasized in a man ner which obscures the evolutionary presuppositions which he acknowledged as the basis of his theorizing. Scientifically, Eddington is better described not in terms of his Quaker background but as a convinced evolutionist. Evolutionary bias rather than scientific objectivity has been the driving force in stellar modelling since Eddington. Whether conventional solar fusion has been disproved or alternative solar energy sources have been confirmed is not addressed.