"The truth may be puzzling. It may take some effort to grasp. It may be counterintuitive. It may contradict deeply held prejudices. It may not be easy to do what the truth demands. But none of that mak…"

"The greatest joy of all is to understand. The greatest reward is to understand."

"We are travelers on a cosmic journey, stardust, swirling and dancing in the eddies and whirlpools of infinity. Life is eternal. We have stopped for a moment to encounter each other, to meet, to love, …"

"Our loyalties are to the species and to the planet. We speak for Earth."

"The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together."