Bases Quote by Thomas Hunt Morgan
“Within the period of human history we do not know of a single instance of the transformation of one species into another one. It may be claimed that the theory of descent is lacking, therefore, in the most essential feature that it needs to place the theory on a scientific basis, this must be admitted.”
![“I am actually weary of telling people that I do not pretend to adduce [direct] evidence of one species changing into another, but I believe that this view is in the main correct, because so many phenomena can thus be grouped end explained.” quote by Charles Darwin](https://sms4smile.com/quotes/img-quotes/1da/charles-darwin-507_believe_i-am-actually-weary-of-telling-people-th_431842.jpg)
