In section I the author of this inaugural lecture (of the new Chair of World Religions for Peace at the University of Glasgow) seeks to clarify the meaning of ‘tolerance’ and argues in favour of its traditional understanding as tolerating what is disapproved. The necessity of practising tolerance in this sense is defended in section II. However – as is explained in section III – given this understanding of tolerance, the concept is no longer adequate to characterise the Christian attitude towards other religions, which has frequently started to move ‘beyond tolerance’ towards appreciation. Section IV closes with a brief discussion of those theological and christological presuppositions that are required in order to complete this move.