During his college years, he had become attached to a group of socialist students, among which he had found his wife-to-be, Raissa Timofeyewna Epstein, an intellectual and social activist from Russia studying in Vienna.
Durante os seus anos de estudo, relacionouse cun grupo de estudantes socialistas, entre os que estaba a que logo foi a súa dona, Raissa Timofeyewna Epstein, unha intelectual e activista rusa que estudaba en Viena.