Leon C. Megginson

"It is not the strongest species that survive, nor the most intelligent but the ones most adaptable to change."

"According to Darwin’s Origin of Species, it is not the most intellectual of the species that survives; it is not the strongest that survives; but the species that survives is the one that is able best to adapt and adjust to the changing environment in which it finds itself."

"....that the civilization that is able to survive is one that is able to adapt to the changing physical, social, political, moral and spiritual environment in which it finds itself."