From these it is discovered, that, at the age of eighteen, in 1642, he commenced a commoner of Magdalen hall, in Oxford, where it is not probable that he continued long; for he informs us himself, that he was withheld from the university by the commencement of the war; nor is it known in what state of life he engaged, or where he resided during that long series of publick commotion. It is, indeed, reported, that he had a commission in the king's army, but no particular account is given of his military conduct; nor are we told what rank he obtained, when he entered into the army, or when, or on what occasion, he retired from it.
It is, however, certain, that if ever he took upon him the profession of arms, he spent but few years in the camp; for, in 1648, he obtained, at Oxford, the degree of bachelor of physick, for which, as some medicinal knowledge is necessary, it may be imagined that he spent some time in qualifying himself.
His application to the study of physick was, as he himself relates, produced by an accidental acquaintance with Dr. Cox, a physician, eminent at that time in London, who in some sickness prescribed to his brother, and attending him frequently on that occasion, inquired of him what profession he designed to follow. The young man answering that he was undetermined, the doctor recommended physick to him, on what account, or with what arguments, it is not related; but his persuasions were so effectual, that Sydenham determined to follow his advice, and retired to Oxford for leisure and opportunity to pursue his studies.
It is evident that this conversation must have happened before his promotion to any degree in physick, because he himself fixes it in the interval of his absence from the university, a circumstance which will enable us to confute many false reports relating to Dr. Sydenham, which have been confidently inculcated, and implicitly believed. It is the general opinion, that he was made a physician by accident and necessity, and sir Richard Blackmore reports, in plain terms, [preface to his Treatise on the Small Pox,] that he engaged in practice, without any preparatory study, or previous knowledge, of the medicinal sciences; and affirms, that when he was consulted by him what books he should read to qualify him for the same profession, he recommended Don Quixote.
That he recommended Don Quixote to Blackmore, we are not allowed to doubt; but the relater is hindered by that self-love, which dazzles all mankind, from discovering that he might intend a satire very different from a general censure of all the ancient and modern writers on medicine, since he might, perhaps, mean, either seriously or in jest, to insinuate, that Blackmore was not adapted by nature to the study of physick, and that, whether he should read Cervantes or Hippocrates, he would be equally unqualified for practice, and equally unsuccessful in it.
Whatsoever was his meaning, nothing is more evident, than that it was a transient sally of an imagination warmed with gaiety, or the negligent effusion of a mind intent upon some other employment, and in haste to dismiss a troublesome intruder; for it is certain that Sydenham did not think it impossible to write usefully on medicine, because he has himself written upon it; and it is not probable that he carried his vanity so far, as to imagine that no man had ever acquired the same qualifications besides himself. He could not but know that he rather restored, than invented most of his principles, and, therefore, could not but acknowledge the value of those writers whose doctrines he adopted and enforced.
That he engaged in the practice of physick without any acquaintance with the theory, or knowledge of the opinions or precepts of former writers, is undoubtedly false; for he declares, that, after he had, in pursuance of his conversation with Dr. Cox, determined upon the profession of physick, he "applied himself in earnest to it, and spent several years in the university," (aliquot annos in academica palæstra,) before he began to practise in London.
Nor was he satisfied with the opportunities of knowledge which Oxford afforded, but travelled to Montpellier, as Désault relates, [Dissertation on Consumptions,] in quest of further information; Montpellier, being at that time, the most celebrated school of physick: so far was Sydenham from any contempt of academical institutions, and so far from thinking it reasonable to learn physick by experiments alone, which must necessarily be made at the hazard of life.
What can be demanded beyond this by the most zealous advocate for regular education? What can be expected from the most cautious and most industrious student, than that he should dedicate several years to the rudiments of his art, and travel for further instructions from one university to another?
It is likewise a common opinion, that Sydenham was thirty years old, before he formed his resolution of studying physick, for which I can discover no other foundation than one expression in his dedication to Dr. Mapletoft, which seems to have given rise to it, by a gross misinterpretation; for he only observes, that from his conversation with Dr. Cox to the publication of that treatise, thirty years had intervened.