Ernst Mayr Quotes
The issue, as correctly emphasized by Carl Sagan, is the probability of the evolution of high intelligence and an electronic civilization on an inhabited world. Once we have life (and almost surely it will be very different from life on Earth), what is the probability of its developing a lineage with high intelligence? On Earth, among millions of lineages of organisms and perhaps 50 billion speciation events, only one led to high intelligence; this makes me believe in its utter improbability.
Mayr, Ernst. "Can SETI Succeed? Not Likely." Bioastronomy News, vol. 7, no. 3, 1995.
This very serious essay on life in the Universe was actually written in 1938, immediately before Churchill would enter the War Cabinet and begin to lead teh Brisih people so heroicaly through the Second World War. However it dod not get pblished unti the 1950s, when there was not much seriosu thought and research given to the possibility of life elsewhere in the universe. By the 21st century, most Cosmologists felt that there eas an extremly high probability of extra terrestial life. Interestingly, the major argument given for this has been the vastly larger number of galaxies, stars and planets than had been thought in most of the 20th century. Without the mathematics used today, Churchill had intuitively realized that the vastness of the universe was the key to the liklihood of other life.
Ernst Walter Mayr was one of the 20th century's leading evolutionary biologists. He was also a renowned taxonomist, tropical explorer, ornithologist, philosopher of biology, and historian of science. His work contributed to the conceptual revolution that led to the modern evolutionary synthesis of Mendelian genetics, systematics, and Darwinian evolution, and to the development of the biological species concept.