北海几十年来一直是能源的强大来源，它在英国的能源安全中仍然发挥着至关重要的作用。

The market is a pendulum that forever swings between unsustainable optimism (which makes stocks too expensive) and unjustified pessimism (which makes them too cheap). The intelligent investor is a realist who sells to optimists and buys from pessimists.

"We are all in the gutter, but some of us are looking at the stars."