One learns by doing the thing; for though you think you know it, you have no certainty until you try

This is a solid project that adds certainty to our production profile beyond 2007. The North Sea is important to our overall growth strategy, and Ettrick is a stepping stone to growing a sustainable business in this area.

In a universe of ambiguity, this kind of certainty comes only once, no matter how many lifetimes you live.

The key is certainty. Businesses need certainty on risks and costs.

Certitude is not the test of certainty. We have been cocksure of many things that were not so.

To be absolutely certain about something, one must know everything or nothing about it.