Christianity: What it is not, and What it is

New Seeds of Contemplation

Apology for Walking: Freedom in Nature and Wildness

The Talking-Machine: Edison's Telephonic and Acoustic Inventions

Outrageous Openness: Letting the Divine Take the Lead

Champollion, the Decipherer of Hieroglyphs: and the Rosetta Stone

Letters from the Earth: Uncensored Writings

Florence Nightingale: the Nurse Who Became Famous

The Very Worst Missionary: A Memoir or Whatever

Diogenes and the Cynic Philosophy

A Note On Sacred Trees

Among the Eskimos: History of their Habits and Religious Beliefs

Small Victories: Spotting Improbable Moments of Grace

Horses and their Domestication

The Enduring Authority of the Christian Scriptures

Thomas Edison: How He Succeeded

Essay Concentrate: a step-by-step guide on how to write an essay

History of Universities

The Imitation of Christ