The sociologist Herbert Spencer is credited with the phrase "survival of the fittest," which he applied to biological evolution years before Darwin's "Origin of Species," and also to the evolution of society. As an agnostic, he also rejected the notion of a divine being, at least insofar as it is possible to say anything meaningful (or empirical) about it.Know More
Likening society to an organism, Spencer emphasized that it should be permitted to develop organically, without the intervention of the State. Spencer argued in favor of natural rights that would allow individuals to do as they thought best.
His political philosophy of decreased state power continues to influence libertarians and other political thinkers critical of the government's impact on individual rights.Learn more about Inventions
Charles Darwin wasn't an inventor; he was a naturalist and geologist. His theories about the way biological populations change over time revolutionized biological science. He published two books, "On the Origin of Species" and "The Descent of Man."Full Answer >
The achievement that Charles Darwin is most known for is his development of the theory of evolution, particularly in his book "On the Origin of Species." In the book, Darwin collects evidence and crafts arguments showing that living things change over time and have genetic relation to one another.Full Answer >
Charles Darwin is best known for establishing a theory of evolution that explains biological changes among the species of the Earth. His belief that most species evolved through the process of natural selection also made him famous because this idea contradicts those of other naturalists of his time.Full Answer >
Common descent, an idea central to Darwin's theory of evolution, is well supported by multiple chains of evidence from the fields of genetics, biogeography and comparative anatomy. The fossil record also provides both direct and indirect evidence of descent with modification from common ancestors, though this line of evidence was generally unavailable to Darwin in the mid-19th century.Full Answer >