I am sufficiently convinced already that the members of a profession know their own calling — Asa Gray
I take it for granted that you do not wish to hear an echo from the pulpit nor from the theological class-room. — Asa Gray
Many years ago it was taught that plants and animals were composed of different materials: — Asa Gray
The best opinion now is, that there are multitudinous forms which are not sufficiently differentiated — Asa Gray