dr. mukherjee was here, introduced by mark, to speak about his cancer, of all the formalities.the evening went on with some of the most heartbreaking, urgent and educated questions i've heard in years. the whole evening and alertness to ideas. i looked over to mark and thought and thought i had read in its expression, carla would have loved this. [applause] >> good afternoon. my name is mary kay zuravleff reading in which the first question from the audience she said this is going to be one of those nights when we talk and cry together, isn't it? and that is what many of the nights have been like at politics & prose and especially this afternoon. many of you, i have been missing carla cohen since she got to sit to be here regularly because this is where i saw her. i was very moved by the talks at her funeral service and when her family and friends told such dear stories about her whole life. i got to know and love her better that day, which i was very grateful for. my connection to carla is through politics & prose, as a writer, reader and a customer and a coffee drinker. so mu