Welcome echoes from The West Wing return, not least in this show's ability to focus unashamedly on a minor point of legislation on which major principles turn.
Among the supporting players Oliver Ford Davies, as a duke whose high principles turn out to be all too adaptable, and Barbara Jefford, as his feisty duchess, provide the most warming notes of humanity.
It should also not be forgotten that at the moment in which the great options in principles turn into specific decisions, private interests tend to emerge.
For nearly four decades after the premiere of L'Orfeo, with its richly decorative writing, the first great opera composer returned to first principles, turning speech into song in the sparest, most sophisticated of forms: recitative.
So we are either ignored or mocked, as we have been in opposition; or, when we were in government, we were ruthlessly and successfully typecast as somehow being weak, having lost our souls, sold out our principles, turned in on ourselves and all the rest of it.
At the centre of the novel is scruffy 11-year-old JR Vansant, who, on a school trip to Wall Street, becomes fascinated with stocks and shares and by applying some basic capitalist principles, turns a simple mail order enterprise into a financial conglomerate.
Leeching around, scumming it up with all his crass friends in high places, betraying his Marxist principles, turning his back on the 80s.
It's about rigorous questioning of even basic principles: turning off the computer, the phone, (and Twitter!) sitting quietly, be it in the garden or in an airport lounge, and taking things from their most fundamental.
Unitarian Universalism doesn't require kneeling, submission, or devotion to any dogma; however, we do keep an open mind, and according to the seven principles, turning someone away is against what we believe.
However, even if our chemistry were badly mistaken (as it could, in principle, turn out to be) and water were not, in fact, H2O, 'water' would still refer to whatever has the same nature as this liquid.
In a car's generator, the same principle turns mechanical energy into electricity.
