It is harder to predict the outcome of demands that an heir marry within a certain faith: An Ohio court validated such a provision in 1974, but an Illinois appellate court struck down another in 2008 (on public-policy grounds) and the state's Supreme Court sidestepped the issue.

WSJ: How to Control Your Heirs From the Grave

Certain says his faith teaches him to oppose torture under all circumstances.

CNN: Torture prompts soul-searching among some Christians

It takes a certain amount of blind faith to believe all the claims attached to religious artifacts.

FORBES: Magazine Article

Because Ted understood that Bobby's legacy wasn't a devotion to one particular cause, or a faith in a certain ideology -- but rather, it was a sensibility.

WHITEHOUSE: President Obama Presents Robert F. Kennedy Human Rights Award | The White House

"To a certain extent we have lost faith in the decision-making as we warned the pre-trial chamber of the quality of the evidence and we were ignored, " Mr Kay told the court, reports the AFP news agency.

BBC: Kenya: Uhuru Kenyatta challenges ICC case

As well as repeating certain familiar commonplaces and negotiating certain familiar taboos, participants in inter-faith gatherings do sometimes run into real questions, that make a difference to the world at large.

ECONOMIST: Islam and the West

Whatever might be said to accord faith and Copernicus, religion depends for its myth on a certain sense of scale.

NEWYORKER: Moon Man

For it is evil things that we shall be fighting against - brute force, bad faith, injustice, oppression and persecution - and against them I am certain that right will prevail.

BBC: Prime Minister Chamberlain declares war

Their common faith facilitated trust, allowing a Quaker tradesman in London to ship goods across the ocean and be certain that he would be paid when they arrived in Philadelphia.

FORBES: A Virtuous Cycle