Read my lips
"You can read my lips. That is a promise from my heart."
Thus David Cameron sought tonight to reassure voters that he would "look after... the elderly, frail, poor and needy" and protect pensioners' benefits, having condemned what he says are Gordon Brown's lies.
It's an unfortunate phrase given its history. George Bush Sr was the first to say "read my lips". The rest of the sentence was "no new taxes". It helped him win the presidency in 1988. He went on to raise taxes to reduce the deficit and "read my lips" became shorthand for broken political promises.