Music is part of being human.

We have five senses in which we glory and which we recognize and celebrate, senses that constitute the sensible world for us. But there are other senses - secret senses, sixth senses, if you will - equally vital, but unrecognized, and unlauded ... unconscious, automatic.

Nature gropes and blunders and performs the crudest acts. There is no steady advance upward. There is no design.

Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and adventure.

We see with the eyes, but we see with the brain as well. And seeing with the brain is often called imagination.

Scheele, it was said, never forgot anything if it had to do with chemistry. He never forgot the look, the feel, the smell of a substance, or the way it was transformed in chemical reactions, never forgot anything he read, or was told, about the phenomena of chemistry. He seemed indifferent, or inattentive, to most things else, being wholly dedicated to his single passion, chemistry. It was this pure and passionate absorption in phenomena-noticing everything, forgetting nothing-that constituted Scheele's special strength.

In examining disease, we gain wisdom about anatomy and physiology and biology. In examining the person with disease, we gain wisdom about life.