Free will

Quantum weirdness

Religion in a global age

The anthropic principle

The perennial philosophy

The problem of evil

What is God?

John Polkinghorne, formerly a theoretical physicist at Cambridge University, is an Anglican priest.

Being good without God

Consciousness

Death

Emergence

Free will

Intelligent Design

Passion

Science and religion

The biology of religion

Edward O. Wilson is Pellegrino University Professor emeritus at Harvard. His awards include the National Medal of Science and two Pulitzer Prizes

Consciousness

Direction in history

Faith and reason

Limits of science

Science and religion

The anthropic principle

Freeman Dyson is professor emeritus of physics at the Institute for Advanced Study.

Fundamentalism

Mystical experiences

Myth

Purpose in history

Religion in a global age

Science and religion Self-transcendence

What is God?

Karen Armstrong, a former nun, teaches Christianity at Leo Baeck College for the Study of Judaism.

Consciousness

Death

Direction in evolution

Direction in history

Free will

Science and religion

John Maynard Smith, who died in 2004 at the age of 84, was one of the major figures in 20th century evolutionary biology. He was professor emeritus at the University of Sussex.

Being good without God

Consciousness

Death

Direction in evolution

Free will

Quantum weirdness

Can anyone meditate?

Faith and reason

Free will

Living in the moment

The problem of evil

The problem of pleasure

What is God?

Why meditate?

Joseph Goldstein is a cofounder of the Insight Meditation Society in Barre, Massachusetts, where he is one of the resident guiding teachers.