Abstract
Museum codes of ethics stress the importance of preservation, knowledge and access, but they remain silent on the justificatory framework of the duty of care museums have to the objects in their collections and on museums' obligations towards their public. In this essay I propose a triangular framework for understanding the duty of care museums have, according to which it is shaped by the need to negotiate an object's transit from past to future in such a way as to secure that object's future significance. The account provided of transit to the future is underwritten by a model of trust as entrusting. Hence, museums' duty to care for the objects in their collections is found to be grounded on the demands of the trust relationship, complemented by the respect that is necessary for effective negotiation of the transit from past to future.