The naturalist is a civilized hunter. He goes alone into the field or woodland and closes his mind to everything but that time and place, so that life around him presses in on all the senses and small details grow in significance. He begins the scanning search for which cognition was engineered. His mind becomes unfocused, it focuses on everything, no longer directed toward any ordinary task or social pleasantry.

Science offers the boldest metaphysics of the age. It is a thoroughly human construct, driven by the faith that if we dream, press to discover, explain, and dream again, thereby plunging repeatedly into new terrain, the world will somehow come clearer and we will grasp the true strangeness of the universe. And the strangeness will all prove to be connected, and make sense.

For me, the peculiar qualities of faith are a logical outcome of this level of biological organization.

Humanity is exalted not because we are so far above other living creatures, but because knowing them well elevates the very concept of life.

The most dangerous of devotions, in my opinion, is the one endemic to Christianity: I was not born to be of this world. With a second life waiting, suffering can be endured - especially in other people. The natural environment can be used up. Enemies of the faith can be savaged and suicidal martyrdom praised.

A paradigm shift is the best a scientist can hope for. Whenever I smell an opportunity like that, I go after it. You have a new discovery that something's working in a different way than you thought. And this is particularly true in molecular and cell biology, which is structural biology and has the least potential for controversy and partisanship among the biological scientists. You're dealing with a concrete object that's either there or not there.

Character is in turn the enduring source of virtue. It stands by itself and excites admiration in others. It is not obedience to authority, and while it is often consistent with and reinforced by religious belief, it is not piety.