ISLAMABAD: The Austrian Ambassador to Pakistan, Dr. Brigitta Blaha, has said that tolerance is a must for peaceful co-existence in plural and diverse societies, where people want to live in harmony. She expressed these views on Monday during the closing ceremony of the Pakistan Centre of Excellence’s (PACE) sixth round of collaborative workshops of four-day training of university teachers. She stressed on tolerance and said that it was wanted from people who had differences of opinion, class and religion so as to tolerate each other. She said that accepting the diversity of race, ethnicity, age, religion and beliefs was pluralism. While explaining equality she said that it had many aspects.