A great many people, and more all the time, live their entire lives without ever once sleeping out under the stars. Alan S. Kesselheim More Quotes by Alan S. Kesselheim More Quotes From Alan S. Kesselheim Small mistakes, the lack of care, little accidents, and somewhere a tipping point is passed and things go badly wrong. Expedition history brims with tragedies built out of incremental missteps. Alan S. Kesselheim tipping tragedy mistake If I replace the word God with the word nature, I am far more at ease with the whole religious enterprise. Alan S. Kesselheim enterprise religious ease