It's kind of the yin and yang that fascinate me. That for all the evil men do, there are also people who work obnoxiously long hours and sacrifice their personal lives because it is a calling - if they don't keep our streets safe, if they aren't there to advocate for and save beaten women and childr
And finally, no matter how good the science gets, there are problems that inevitably depend on judgement, on art, on a feel for financial markets.