Sir Isaac Newton, it is well known, was thoroughly persuaded of the Truth of Revelation: yet he did not escape the imputation of being an Arian, Mr. Whiston having represented him as such. It is equally a matter of notoriety, that similar opinions have prevailed respecting Dr. Rittenhouse’s religious creed: nay, further, that doubts were entertained by some, whether he believed at all in the fundamental principles of the Christian religion. In one instance, indeed, a virulent party-writer[348a] had the hardiness, one might say folly, to proclaim him an “Atheist!” The publication in which this false and shameful accusation was made, appeared about the time of Dr. Rittenhouse’s death, and, it is believed, shortly after that event. As a Biographer of such a man as Rittenhouse, the Author of these Memoirs would do great injustice to his memory, did he not lay before his readers, in a full and undisguised manner, that sort of testimony concerning our Philosopher’s religious sentiments, which it is presumed will eradicate every doubt or suspicion, that has heretofore existed in the minds of some, on the subject. He is aware of the influence, which the opinions of eminently wise and good men (or, of such sentiments as are sometimes attributed to them,) have, in their operation on society; and, in every point of view, he fully estimates the importance of representing them to the world, in a strict conformity to truth. These considerations have induced the Memorialist to devote a larger portion of his work to an elucidation of Dr. Rittenhouse’s real opinions on the all-important subject of Religion, than he should have thought proper, under other circumstances, to appropriate to that part of his character. Under these impressions, then, the Memorialist could not think it consistent with his duty, to withhold from the public a letter addressed to him by the Rev. Mr. Cathcart, a clergyman of much respectability and pastor of a presbyterian congregation in the borough of York. This letter (which will be found in the Appendix) contains what may be fairly deemed conclusive evidence, even if such had been before wanting, that Dr. Rittenhouse was “a firm Believer in Christianity.” Bishop White had communicated to the Memorialist, in conversation, the interesting facts stated in Mr. Cathcart’s letter; the knowledge of which, the Bishop had derived, verbally, from that gentleman: his letter was written in answer to one which the Memorialist addressed to him, on the occasion, at the instance of the Right Rev. Prelate. Footnote 348a: Mr. William Cobbett. Footnote 349: