From his first experiment growing corn in the front yard at age three, J. R. Klein pushed the envelope. Life itself was an experiment, and he held the magic wand that captured every bewitching moment. Follow Klein into his monastic journey as a Maryknoll seminarian, up the Amazon River, deep into remote areas of the rain forest, and into Nicaragua in the heat of the Iran-Contra affair. Through it all, Klein earned a PhD in Immunology at Johns Hopkins...