"The former conviction that these two kingdoms were wholly different in structure, in function, and in kind of life, was not seriously disturbed by the difficulties which the naturalist encountered when he undertook to define them"
This quote is written / told by Asa Gray between November 18, 1810 and January 30, 1888. He/she was a famous Scientist from USA.
The author also have 21 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"
