Darwin and the Barnacle, by Rebecca Stott
In his own writing he knew that if he chose the wrong word or a clumsy inflection, the walls would fall, the picture fade, the evidence collapse. It took so much time to get it right, these words poised delicately against each other within a single sentence, patterned, balanced, holding the reader's trust for a moment longer, just to carry him or her, like a bridge, through to the next claim. If the reader accepted this claim, would she or he accept the next? How far would readers travel with him? Would they be converted? What would it take to get them to see through his eyes?