"expression of truth" is correct and usable in written English.
You can use it to refer to someone's honest opinion or statement. For example, "Shauna has always been an expression of truth, never one to mince her words."
But Ms. Rainer is not interested in a direct expression of truth or in fidelity to nature.
Michael Mansfield said that he hoped that the commission would "serve as an expression of truth and conscience by the people for the people.
A 2005 finalist for the Michael Kelly Award for the "fearless pursuit and expression of truth," Grann has also written for the New York Times Magazine, The Atlantic, the Washington Post, the Boston Globe, and the Wall Street Journal.
But how, if she is so filled with shame, could she have proposed marriage to Ames? There, I think, lies the secret of Lila, as a character: boldness, the perception and expression of truth, combined with a certainty, based on her past experience, that she will be cast aside.
In other words, while the ordinary magazines must minister to a large public little interested in poetry, this magazine will appeal to, and it may be hoped, will develop, a public primarily interested in poetry as an art, as the highest, most complete expression of truth and beauty".
Dialectic and demonstration, however, are directed towards the expression of truth.
In May, a dozen years later, Pope Benedict marked the 40th anniversary of "Humanae Vitae" by hailing it as courageous, farsighted and an expression of a truth that "does not change".
As a result of his studies and visions, he came to the conclusion that "all religions are true" but that the religion of a person's own time and place was for that person the best expression of the truth.
Fahey, who was famously cantankerous it's been said that, in his later years, he grew increasingly bitter and choleric, like all men who know too much about things nobody else cares about explained it only as an expression of his truth: "The pathos of the suburbs or whatever".
But he gives the idea a free pass (clearly it's less true of some aspects of intellectual life – such as medicine or mathematics – than others), and he raises no flags in this context over Lewis's blatantly whiggish notion of Christianity: not as one myth among others, but as the encompassing expression of a truth partially and imperfectly grasped in other systems of religious ideas.
