It's not so much that we're afraid of change or so in love with the old ways, but it's that place in between that we fear . . . . It's like being between trapezes. It's Linus when his blanket is in the dryer. There's nothing to hold on to.

Real progress in understanding nature is rarely incremental. All important advances are sudden intuitions, new principles, new ways of seeing.

Over the years your bodies become walking autobiographies, telling friends and strangers alike of the minor and major stresses of your lives.

Making mental connections is our most crucial learning tool, the essence of human intelligence; to forge links; to go beyond the given; to see patterns, relationships, context.

If we are to find our way across troubled waters, we are better served by the company of those who have built bridges, who have moved beyond despair and inertia.

Risk always brings its own rewards: the exhilaration of breaking through, of getting to the other side; the relief of a conflict healed; the clarity when a paradox dissolves.

Sometimes in astronomy, a heavenly body has been virtually invisible until a single observer detects its presence and points it out to his colleagues, who then see it with increasing clarity. Perhaps a myriad of unknown senses are only awaiting our consciousness.