Max Brand 
The Night Horseman [EPUB ebook] 

At the age of six Randall Byrne could name and bound every state in the Union and give the date of its admission; at nine he was conversant with Homeric Greek and Caesar; at twelve he read Aristophanes with perfect understanding of the allusions of the day and divided his leisure between Ovid and Horace; at fifteen, wearied by the simplicity of Old English and Thirteenth Century Italian, he dipped into the history of Philosophy and passed from that, naturally, into calculus and the higher mathematics; at eighteen he took an A.B. from Harvard and while idling away a pleasant summer with Hebrew and Sanskrit, he delved lightly into biology and its kindred sciences, having reached the conclusion that Truth is greater than Goodness or Beauty, because it comprises both, and the whole is greater than any of its parts; at twenty-one he pocketed his Ph.D. and was touched with the fever of his first practical enthusiasm—surgery.