Outside the solar system, the problems which demand a practical solution are all but infinite in number and extent.


A Popular History of Astronomy During the Nineteenth Century (3rd, edition), Part II, Chapter 13 (p. 528)

Agnes Mary Clerke Quotes

Outside the solar system, the problems which demand a practical solution are all but infinite in number and extent.

Outside the solar system, the problems which demand a practical solution are all but infinite in number and extent.

Outside the solar system, the problems which demand a practical solution are all but infinite in number and extent.

Outside the solar system, the problems which demand a practical solution are all but infinite in number and extent.