John Herschel Quote

As civilization extends, wants and desires of a higher order than material gratifications arise; and among them that of extending knowledge for the sake of knowing the craving after a larger grasp, a clearer insight, a more complete conception in all its relations of the wondrous universe of which we form a part.

Familiar Lectures on Scientific Subjects, Lecture V (p. 179), George Routledge & Sons. 1871