At first glance, iWise is “Twitter for dead people,” says founder and CEO Edo Segal. You can find nuggets of wisdom from famous people about anything—love, change, happiness, truth. Then you can follow those people in your own “Wisdom Tree,” which is a feed of quotes from the people you follow. In my Wisdom Tree, for instance, I’m following Benjamin Franklin, George Orwell, Ernest Hemingway, the D