I am a camera with its shutter open, quite passive, recording, not thinking ( the opening line of Goodbye To Berlin )
I swear to tell the truth the whole truth and nothing but the truth
I think therefore I am ( philosophical comment by Rene Descartes )
If you tell the truth, you don't have to remember anything ( Mark Twain quotation )
It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife ( the opening line of Pride and Prejudice )