Style is the physiognomy of the mind. It is more infallible than that of the body. To imitate the style of another is said to be wearing a mask. However beautiful it may be, it is through its lifelessness insipid and intolerable, so that even the most ugly living face is more engaging.
Let us guess that whenever we read a sentence & like it, we unconsciously store it away in our model-chamber; & it goes, with the myriad of its fellows, to the building, brick by brick, of the eventual edifice which we call our style.
From the early days of the telegraph, to be a telegrapher was a job, and there weren't many of those folks. They could recognize each other's style by their dots and dashes.