We really haven't got any great amount of data on the subject, and without data how can we reach any definite conclusions? All we have — everything — favors the idea of what religionists call the "Hereafter." Science, if it ever learns the facts, probably will find another more definitely descriptive term.

As quoted in Thomas A. Edison, Benefactor of Mankind : The Romantic Life Story of the World's Greatest Inventor (1931) by Francis Trevelyan Miller, Ch. 25 : Edison's Views on Life — His Philosophy and Religion, p. 295.