The third principle is parity for small businesses.

WSJ: Max Baucus and Dave Camp: Tax Reform Is Very Much Alive and Doable

It said the principle of building a third nuclear plant on the Suffolk coast, immediately to the north of Sizewell B, had been accepted by government.

BBC: Sizewell C proposal

The Green Party - which is a member of the left-wing government - is opposed in principle to a third airport, arguing that it should be sited in the provinces to encourage decentralisation.

BBC: Paris plans third airport

The third selling point: Hydrogen could, in principle, deliver energy independence to every nation because it can be derived using any number of sources-including oil, natural gas, nuclear fission, coal, hydroelectric power and wind.

FORBES: Companies, People, Ideas

The second principle is more relevant to the first pool than to the second and third, by which time most serious Kentucky Derby winners are graded stakes winners.

FORBES: Betting the Kentucky Derby Future Pool