1. A method of expressing a statement to a recipient on behalf of a user on a device having a processor, the method comprising: executing on the processor instructions that cause the device to: examine an expression set comprising at least one expression authored by the user to identify a phrase that appears in at least one prior expression previously authored by the user and that is relevant to the statement; compose a message expressing the statement in an expression style of the user by: selecting a message template associated with the expression style of the user, wherein the message template comprises at least one slot for insertion of content to adapt the message template to the statement; and inserting the phrase previously authored by the user into the at least one message slot of the message template; present the message to the user for confirmation; and responsive to receiving a confirmation of the message from the user, transmit the message to the recipient, transmit the message to the recipient.