The phrase "inner certainty" is grammatically correct and can be used in written English.
It is typically used to describe a strong feeling or belief that one has within themselves. Example: Despite the challenges, she held onto her inner certainty that she would succeed in achieving her goals.
But his inner certainty creates an outer disconnect.
He knows with an inner certainty that he will now be left alone.
The musician turns her head to look at the viewer with an expression of profound inner certainty.
We know we will prevail in the end". She smiled beatifically as she clutched her submachine gun, apparently comforted by a deep inner certainty.
"He just went ahead and did it," Ms. Nasar said, "and to have that kind of inner certainty is a little crazy.
A perpetual victim of injustice, he yet has a sense of justice: circumstances can't destroy his inner certainty that there are such things as fairness, love, and truth.
In the view of several officials, Mr Bush's inner certainties were tempered by his biography.
The hard inner laissez-faire certainties of past years in board rooms and the government have given way to a strange neo-socialism played with green yo-yos called the public's billions entrusted to failed bankers.
In common with their Christian opponents, they share "the inner glow of complete certainty" - as Wilson describes his atheist conversion.
The tension between the outsider's inner life and the unyielding certainty of his reality has rarely been so incisively documented.
Ordinary persons are most likely to believe in the traditional analogical inference, appealing to the similarity that holds between ourselves and others, as the basis for our certainty about the inner lives of other human beings.
