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.
Asa GrayI am sufficiently convinced already that the members of a profession know their own calling better than anyone else can know it.
Asa GrayIt was implicitly supposed that every living thing was distinctively plant or animal; that there were real and profound differences between the two, if only they could be seized.
Asa GrayFaith in order, which is the basis of science, cannot reasonably be separated from faith in an Ordainer, which is the basis of religion.
Asa Gray