A doozie of a quote from essay 14 of Samuel Johnson’s The Rambler (1750):

It is not difficult to conceive, however, that for many reasons a man writes much better than he lives. For, without entering into refined speculations, it may be shown much easier to design than to perform. A man proposes his schemes of life in a state of abstraction and disengagement, exempt from the enticements of hope, the solicitations of affection, the importunities of appetite, or the depressions of fear, and is in the same state with him that teaches upon land the art of navigation, to whom the sea is always smooth, and the wind always prosperous… We are, therefore, not to wonder that most fail, amidst tumult and snares and danger, in the observance of those precepts, which they laid down in solitude, safety, and tranquility, with a mind unbiased, and with liberty unobstructed… Nothing is more unjust, however common, than to charge with hypocrisy him that expresses zeal for those virtues which he neglects to practice; since he may be sincerely convinced of the advantages of conquering his passions, without having yet obtained the victory.