“... nothing in Nature is black or white, few solutions are clean and clear; rather, reality, and especially our models of it, possess shades of gray throughout.”

“At every level in our inventory, nothing seems special about our Earth, our Sun, our Galaxy, our Local Group. Evidently, mediocrity reigns throughout. Such is our niche in the Universe.”

“... researchers argue that it's of utmost importance to unravel the nature of black holes, lest we someday begin to worship them. Sounds ridiculous, but whole segments of humankind have often revered the unknowable, venerating that which cannot be tested experimentally. Come to think of it, many still do in twenty-first-century society.”

“The epitome of culture is the search for truth, or at least a reasonable approximation of reality, most notably the need to know ourselves and the world around us.”

“... Nature almost surely operates by combining chance with necessity, randomness with determinism...”

“The two go hand in hand like a dance: chance flirts with necessity, randomness with determinism. To be sure, it is from this interchange that novelty and creativity arise in Nature, thereby yielding unique forms and novel structures.”

“Evolution, energy, and ethics are the core elements that will guide us along the challenging path toward the Life Era: the first - evolution - because a good understanding of our universal roots and of our place in the cosmic scheme of things will help us create a feasible future course; the second - energy - because our fate will bear strongly on the ways that humankind learns to use energy efficiently and safely; and the third - ethics - because global citizenship and a planetary society are crucial factors in the survival of our species.”