The Cloud of Unknowing, by Anonymous
How a man shall know when his thought is no sin; and if it be sin, when it is deadly and when it is venial.
And if it be a thing that pleaseth thee, or hath pleased thee before, there riseth in thee a passing delight for to think on that thing what so it be. Insomuch, that thou restest thee in that thought, and finally fastenest thine heart and thy will thereto, and feedest thy fleshly heart therewith: so that thee think for the time that thou covetest none other wealth, but to live ever in such a peace and rest with that thing that thou thinkest upon. If this thought that thou thus drawest upon thee, or else receivest when it is put unto thee, and that thou restest thee thus in with delight, be worthiness of nature or of knowing, of grace or of degree, of favour or of fairhead, then it is Pride. And if it be any manner of worldly good, riches or chattels, or what that man may have or be lord of, then it is Covetyse. If it be dainty meats and drinks, or any manner of delights that man may taste, then it is Gluttony. And if it be love or plesaunce, or any manner of fleshly dalliance, glosing or flattering of any man or woman living in this life, or of thyself either: then it is Lechery.
- Chapter 10