"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.
"Tomorrow is the most important thing in life. Comes into us at midnight very clean. It's perfect when it arrives and it puts itself in our hands. It hopes we've learned something from yesterday"