This all comes down to what we know about life on Earth.

If TPF is not canceled, these are the places where we will search.

No man is responsible for his father. That was entirely his mother's affair.

There are 400 billion stars in the galaxy, and obviously we are not going to point the Terrestrial Planet Finder at every one of them.

Great men are meteors designed to burn so that the earth may be lighted

Drudgery is as necessary to call out the treasures of the mind, as harrowing and planting those of the earth