Over a decade ago, a friend gave me a copy of Harvey Cushing's The Life of Sir William Osler. He knew I admired Osler but had read little of his work. Somewhat reluctantly, because of its forbidding length, I waded into the volume and was swept away by the elegance of both Cushing and Osler's writings. You may be interested in perusing some of the selections which I highlighted.
Here is a .pdf which you can examine at your leisure. Download life_of_osler.pdf (The page numbers refer to the Oxford University Press one volume edition of 1940.)