From the bestselling, award-winning author of 1491 and 1493—an incisive portrait of the two little-known twentieth-century scientists, Norman Borlaug and Will

This spiritual guide to the self is a handbook of tazkiyah or 'self-purification'. Not only does it illustrate the maladies of the human spiritual condition, it

How are we to become true believers who seek God's good pleasure? How are we to become mindful of God, to be thankful or worshipful? How are we to control our a