"That the variability of an organism to a certain extent is a constant and certain condition of life we admit, otherwise there would be no distinguishable individuals of a species"
This quote is written / told by Richard Owen between July 20, 1804 and December 18, 1892. He/she was a famous Scientist from England.
The author also have 9 other quotes.
"Life is life - whether in a cat, or dog or man. There is no difference there between a cat or a man. The idea of difference is a human conception for man's own advantage"