Performatives

"A classic example: saying 'I do' at a wedding ceremony. There is no horizontal content with which the words 'I do' couple. The expression 'I do' does not diagram a more or less distant encounter. It exists only in relation to its vertical content, to the dynamic state of things within which it is generated." -Brian Massumi, A User's Guide to Capitalism and Schizophrenia. 

Alex Siegman