Astronomy

I believe that space travel will one day become as common as airline travel is today. — Buzz Aldrin

Biology

It's not the strongest of the species that survives, nor the most intelligent, but the one most adaptable to change. — Leon C. Megginson

Geology

Geology is not the study of stones. It is the study of time. — Ian Lendler

Math

Truth is beauty, beauty is truth. — John Keats

Physics

When you change the way you look at things, the things you look at change. — Max Planck

Technology

The real danger is not that computers will begin to think like men, but that men will begin to think like computers. ― Sydney J. Harris