Charles Darwin, a 19th century British self-taught geologist and writer. He attended a course in theology at Christ’s College, Cambridge. Darwin wrote in two places in his book Life and Letters about his personal faith: “The mystery of the beginning of all things is insoluble by us; and I for one must be content to remain an Agnostic.” “I think an Agnostic would be the more correct description of my state of mind. The whole subject [of God] is beyond the scope of man’s intellect.” 1
Darwin is pictured above, showing him not long after he published On the Origin of the Species in 1859 at the age of 51 years.  Darwin achieved great fame and notoriety with this publication, even in his own generation, and is now viewed with such esteem by his loyal followers as one might revere a god.  In 2009, his devotees celebrated the 150th birthday of this seminal publication, and bestowed great honor on their hero.  The publication of On the Origin of the Species fundamentally changed civilization, and opened a wide gait for a broad-based attack on Christianity, and for that matter, on all religions.  This publication is available to read on-line and without charge2.

Darwin's Theory of Evolution basically said that all species of life evolved over very long periods of time from common ancestors through a process he called Natural Selection3.  He critically evaluated his own conclusions, and recognized four areas of difficulty for his theory .  These, in his own words, are as follows:
  1. "Why, if species have descended from other species by insensibly fine gradations, do we not everywhere see innumerable transitional forms? Why is not all nature in confusion instead of the species being, as we see them, well defined."
  2. "Is it possible that an animal having, for instance, the structure and habits of a bat, could have been formed by the modification of some animal with wholly different habits? Can we believe that natural selection could produce, on the one hand, organs of trifling importance, such as the tail of a giraffe, which serves as a fly-flapper, and, on the other hand, organs of such wonderful structure, as the eye, of which we hardly as yet fully understand the inimitable perfection?"
  3. "Can instincts be acquired and modified through natural selection? What shall we say to so marvellous an instinct as that which leads the bee to make cells, which have practically anticipated the discoveries of profound mathematicians?"
  4. "How can we account for species, when crossed, being sterile and producing sterile offspring, whereas, when varieties are crossed, their fertility is unimpaired?"4
I am amazed that Darwin was so honest and open about the potential weaknesses in his theory.  I have never read or hear of a present day evolutionist who would admit to any weakness in the theory of evolution.  Apparently, the neo-Darwinists of today are unlike their founder and hero.

ENDNOTES:
  1. Encyclopedia of World Religions, Cults and the Occult, First Edition. John Hunt Publishing Ltd. Text © 2006 Mark Water. All rights reserved. Electronic Edition STEP.  Files © 2006, QuickVerse.  All rights reserved.
  2. http://www.talkorigins.org/faqs/origin.html
  3. http://en.wikipedia.org/wiki/Charles_Darwin
  4. http://www.talkorigins.org/faqs/origin/chapter6.html