To use Charles Darwin's own words from his Autobiography:-

DarwinThe manner in which Darwin presumed, on this occasion, to nominate his own visiting time, and the warm farewell to a "dear old Patron" does much to show the closeness of the friendship between the two men.

Several days later Darwin again wrote to Sir Charles Lyell:-

G.: 1958, The Evolution of Living Things, Manchester University Press, Manchester.

Charles Darwin himself in his Autobiography (1887) wrote:-

Editor's Note: This story, originally published in the July 2000 issue of Scientific American, is being made available due to the 150th anniversary of Charles Darwin's On the Origin of the Species

To quote Charles Darwin, (from his Autobiography), again:-

The situation differs dramatically with regard to concepts in biology. Many biological ideas proposed during the past 150 years stood in stark conflict with what everybody assumed to be true. The acceptance of these ideas required an ideological revolution. And no biologist has been responsible for more—and for more drastic—modifications of the average person’s worldview than Charles Darwin.

C.: 1971, ‘The Kuhnian Paradigm and the Darwinian Revolution in Natural History’, in D.

Essay on Charles Darwin's Theory of Evolution.

In a covering letter Wallace asked that Darwin forward the memoir to a famous scientist, Sir Charles Lyell, if Darwin thought the content merited his attention.

Darwins theory of evolutions influence on modern psychology

360-363.

And so it was that Wallace sent a twenty page long memoir about this evolutionary theory to the influential expertnaturalist Charles Darwin, arrived in Darwin's hands in June 1858.

(How did Thomas Malthus influence Charles Darwin?)

In this way every part of an animal's organization could be modified exactly as required, and in the very process of this modification the unmodified would die out, and thus the definite characters and the clear isolation of each new species would be explained.

A.: 1981, ‘Nature's Fancy: Charles Darwin and the Breeding of Pigeons, Isis72, 163–186.

Darwin s Theory of Evolution - College Essay - Jimaleigh

The facts of variability, of the struggle for existence, of adaptation to conditions, were notorious enough; but none of us had suspected that the road to the heart of the species problem lay through them, until Darwin and Wallace dispelled the darkness, and the beacon-fire of the 'Origin' guided the benighted.

Erasmus Darwin's work includes the following acceptance of heritable evolutionary change:-

Research Paper-Charles Darwin; Darwin’s Theory of Evolution;

Second, Darwinism refutes typology. From the time of the Pythagoreans and Plato, the general concept of the diversity of the world emphasized its invariance and stability. This viewpoint is called typology, or essentialism. The seeming variety, it was said, consisted of a limited number of natural kinds (essences or types), each one forming a class. The members of each class were thought to be identical, constant, and sharply separated from the members of other essences.

Also in 1887 Hooker provided a recollection of the meeting to Charles Darwin's son Francis Darwin:

Evolution and Charles Darwin Essays; Creation and Augustine vs

In the event, Darwin, in consultation with SirCharles Lyell and Sir Joseph Hooker, agreed that there should bea public joint presentation of the potentially dramatically controversial views that he, and Wallace, had independently developed.