Is environment more important than heredity? Di, 18. März 2014, 18:00 Uhr DAI - Bibliothek Social Activity Every Tuesday at 6 pm the general public is invited to participate in our English-language discussion group. Meetings take place in the DAI library and are free of charge. However, those wishing to assure that this service continues should become members of the DAI’s Circle of Friends. Discussions are led by Dr. Steven Bloom and are well known for being both informative and entertaining.