conferences with open attendance are very important for the stimulation of young people or other people who are new in the field. . . . The field of high-energy physics is, as you know, very strongly in the hands of a clique and it is hard for an outsider to enter.
Play gives children a chance to practice what they are learning. . . They have to play with what they know to be true in order to find out more, and then they can use what they learn in new forms of play.