Abstract

How can you give your interlocutor a reason to act? One way is by manipulating his deliberative context through threats, flattery, or other incentives. Another is by addressing him in the way distinctive of reasoning with him. I aim to account for the possibility of this non-manipulative form of address by showing how it is realized through the performance of a specific illocutionary act, that of advising as inviting to trust. I argue that exercise of a capacity for reasonable trust can give us reasons that are not grounded in our motivational susceptibilities. Here I echo Kant on moral motivation. But this rational faculty assesses not principles but persons. Here I echo Hume on the moral virtues. We can thus agree with Kant about the motivational efficacy of practical reasons dispensed through advice but agree with Hume about the form of intelligence needed to put ourselves in touch with them.