Identify the author of the following excerpt and the main idea of it. “ I grew convinced that truth, sincerity, and integrity, in dealings between man and man, were of the utmost importance to the felicity of life; and I formed written resolutions, which still remain in my journal-book, to practise them ever while I lived. Revelation had indeed no weight with me, as such; but I entertained an opinion that, though certain actions might not be bad because they were forbidden by it, or good because it commanded them, yet probably those actions might be forbidden because they were bad for us, or commanded because they were beneficial to us, in their own natures, all the circumstances of things considered. And this persuasion, with the kind hand of Providence, or some guardian angel, or accidental favorable circumstances and situations, or all together, preserved me thro' this dangerous time of youth, and the hazardous situations I was sometimes in among strangers, remote from the eye and advice of my father, without any wilful gross immorality or injustice, that might have been expected from my want of religion.... ”