Wealthy individuals have bought up large tracts of land of conservation importance, often rainforest, in the sincere belief that they were doing the planet a good turn.

It stems, of course, from the sincere belief that we alone are the true heirs of our faith and that we have a responsibility to maintain that precious heritage.

He had a deep and sincere belief in the influence of literature on the soul and mind as a source of inspiration.

She referred to this decision as an act of idealism, sprung from a sincere belief in the fight against injustice and support for the weak.