There are some sentences where the expressions "at that time/at the time/at this time" are used. Could you explain me the difference between them and why they are used in this context? Also, I would welcome any other example.
1. Well, I did not try this method. All our patients in the hospitals at that time used to get chloral and paraldehyd by the bucket. At the time I thought the doctor´s method was sheer quackery. But like other men of that period, he was groping for some means of helping the patient.
2. The turning point in Jung´s development seems to have been his return from his trip to America in 1909. He felt convinced that he had caught sight of basic weakness in Freud´s approach. At this time also, Jung seems to have undergone a period of personal uncertainity.