In this paper, I address a fundamental challenge in the philosophy of trust: how to account for trustee discretion in scenarios that fall outside explicitly defined expectations. I argue that this challenge reveals vagueness as an inherent feature of trusting relationships, often leading to disagreements between trustors and trustees. To resolve this, I propose a novel account of trust grounded in rule-following, shifting the object of trust from particular actions to adherence to rules constitutive of relationships. By focusing on relationships (...) and their constitutive rules, I provide here a framework for understanding and minimizing disagreements through communication and engaged practice. Furthermore, I argue this framework sheds light on the dynamics of trust-related reactive attitudes, in particular, distinguishing between betrayal and mere disappointment. (shrink)

n the middle of the 20th century, it was a common Wittgenstein-inspired idea in philosophy that languages are analogous to games and for a linguistic expression to have a meaning in a language is for it to be governed by a rule of use. However, due to the influence of David Lewis’s work it is now standard to understand meaningfulness in terms of conventional regularities in use instead (Lewis 1969, 1975). In this paper I will present a simplified Lewis-inspired Conventions (...) view which embodies the basic idea and argue that it is inferior to the older Rules view. Every theory of meaningfulness in a language must yield a plausible story of what it is to speak the language, that is, of what it is to use an expression with its meaning. Those who have adopted something like the Conventions view standardly take use with meaning to consist in trying to use the expression in the conventionally regular way (Lewis 1969, Davis 2003, Loar 1981). I argue that this proposal fails since use with meaning is compatible with intentional misuses. In contrast, on the Rules view we can take use with meaning to be analogous to making a move in the game and to consist in using it while the rule is in force for one which is compatible with intentionally breaking it. And nothing structurally analogous can be found on the Conventions view without inflating it into the Rules view, which completes the case against it. (shrink)