The cosmologist, accepting the universe for what it is, must try to discover why it is thus and not otherwise.


Annual Report of the Board of Regents of the Smithsonian Institution, (1926), Cosmogony (p. 155)


The cosmologist, accepting the universe for what it is, must try to discover why it is thus and not otherwise.

The cosmologist, accepting the universe for what it is, must try to discover why it is thus and not otherwise.

The cosmologist, accepting the universe for what it is, must try to discover why it is thus and not otherwise.

The cosmologist, accepting the universe for what it is, must try to discover why it is thus and not otherwise.