Michio Kaku in [ ” Physics of the Impossible”]
"A hundred years ago, Auguste Compte, … A great philosopher, said that humans will never be able to visit the stars, that we will never know what stars are made out of, that that’s the one thing that science will never ever understand, because they’re so far away. And then, just a few years later, scientists took starlight, ran it through a prism, looked at the rainbow coming from the starlight, and said: ‘Hydrogen!’ Just a few years after this very rational, very reasonable, very scientific prediction was made, that we’ll never know what stars are made of."
"Our sun is one of 100 billion stars in our galaxy. Our galaxy is one of billions of galaxies populating the universe. It would be the height of presumption to think that we are the only living things in that enormous immensity."
-Werner von Braun
"Science has found not only that the universe has a reeling and ecstatic grandeur, not only that it is accessible to human understanding, but also that we are, in a very real and profound sense, a part of that cosmos, born from it, our fate deeply connected with it. The most basic human events and the most trivial trace back to the universe and it’s origins."
Michio Kaku, Hyperspace: A Scientific Odyssey Through Parallel Universes, Time Warps, and the Tenth Dimension