Add long-term view of astronomy.
Add long-term view of astronomy.

Submitted by:	newton

The attribution appears to be correct according to
http://emporium.turnpike.net/C/cs/sagan.htm.  Others have apparently
attributed it to Carl Sagan.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase