This was typical of his style as a whole: an honest expression of a clearsighted mind.

There's a notion of honest expression there.

Indeed, many of the greatest writers have been shy or socially awkward, recoiling from attention, finding more honest expression on paper.

There's an ugly intolerance of honest expression afoot in our era, and we should notice.

Further, the transparency of buildings, construction (called the honest expression of structure), and acceptance of industrialized mass-production techniques contributed to the international style's design philosophy.