The Principles of Biology, Vol 1 Quotes

“If a single cell, under appropriate conditions, becomes a man in the space of a few years, there can surely be no difficulty in understanding how, under appropriate conditions, a cell may, in the course of untold millions of years, give origin to the human race.”
― Herbert Spencer, The Principles of Biology, Vol 1

“This survival of the fittest implies multiplication of the fittest.

{The phrase 'survival of the fittest' was not originated by Charles Darwin, though he discussed Spencer's 'excellent expression' in a letter to Alfred Russel Wallace (Jul 1866).}”
― Herbert Spencer, The Principles of Biology, Vol 1

“This survival of the fittest which I have here sought to express in mechanical terms, is that which Mr. Darwin has called 'natural selection, or the preservation of favoured races in the struggle for life.”
― Herbert Spencer, The Principles of Biology, Vol 1