George Washington to Step-granddaughter Eleanor (Nelly) Parke Custis, Philadelphia, March 21, 1796
“Your letter, the receipt of which I am now acknowledging, is written correctly and in fair characters, which is an evidence that you command, when you please, a fair hand. Possessed of these advantages, it will be your own fault if you do not avail yourself of them, and attention being paid to the choice of your subjects, you can have nothing to fear from the malignancy of criticism, as your ideas are lively, and your descriptions agreeable. Let me touch a little now on your Georgetown ball, and happy, thrice happy, for the fair who were assembled on the occasion, that there was a man to spare; for had there been 79 ladies and only 78 gentlemen, there might, in the course of the evening, have been some disorder among the caps; notwithstanding the apathy which one of the company [Nelly herself] entertains for the “youth” of the present day, and her determination “never to give herself a moment’s uneasiness on account of any of them.” A hint here; men and women feel the same inclinations to each other now that they always have done, and which they will continue to do until there is a new order of things, and you, as others have done, may find, perhaps, that the passions of your sex are easier raised than allayed. Do not therefore boast too soon or too strongly of your insensibility to, or resistance of, its powers. In the composition of the human frame there is a good deal of inflammable matter, however dormant it may lie for a time, and like an intimate acquaintance of yours, when the torch is put to it, that which is within you may burst into a blaze; for which reason and especially too, as I have entered upon the chapter of advices, I will read you a lecture drawn from this text.
“Love is said to be an involuntary passion, and it is, therefore, contended that it cannot be resisted. This is true in part only, for like all things else, when nourished and supplied plentifully with aliment, it is rapid in its progress; but let these be withdrawn and it may be stifled in its birth or much stinted in its growth. For example, a woman (the same may be said of the other sex) all beautiful and accomplished, will, while her hand and heart are undisposed of, turn the heads and set the circle in which she moves on fire. Let her marry, and what is the consequence? The madness ceases and all is quiet again. Why? not because there is any diminution in the charms of the lady, but because there is an end of hope. Hence it follows, that love may and therefore ought to be under the guidance of reason, for although we cannot avoid first impressions, we may assuredly place them under guard; and my motives for treating on this subject are to show you, while you remain Eleanor Parke Custis, spinster, and retain the resolution to love with moderation, the propriety of adhering to the latter resolution, at least until you have secured your game , and the way by which it may be accomplished.
“When the fire is beginning to kindle, and your heart growing warm, propound these questions to it. Who is this invader? Have I a competent knowledge of him? Is he a man of good character; a man of sense?  For, be assured, a sensible woman can never be happy with a fool? [sic] What has been his walk in life? Is he a gambler, a spendthrift, or drunkard? Is his fortune sufficient to maintain me in the manner I have been accustomed to live , and my sisters do live, and is he one to whom my friends can have no reasonable objection?  If these interrogatories can be satisfactorily answered, there will remain but one more to be asked, that, however, is an important one. Have I sufficient ground to conclude that his affections are engaged by me?  Without this the heart of sensibility will struggle against a passion that is not reciprocated ; delicacy, custom, or call it what epithet you will, having precluded all advances on your part. The declaration, without the most indirect invitation of yours, must proceed from the man, to render it permanent and valuable, and nothing short of good sense and an easy unaffected conduct can draw the line between prudery and coquetry. It would be no great departure from truth to say, that it rarely happens otherwise than that a thorough-paced coquette dies in celibacy, as a punishment for her attempts to mislead others, by encouraging looks, words, or actions, given for no other purpose than to draw men on to make overtures that they may be rejected. 
“This day, according to our information, gives a husband to your elder sister [Eliza Parke Custis], and consummates, it is to be presumed, her fondest desires. The dawn with us is bright, and propitious, I hope, of her future happiness, for a full measure of which she and Mr. Law have my earnest wishes. Compliments and congratulations on this occasion, and best regards are presented to your mamma, Dr. Stuart and family; and every blessing, among which a good husband when you want and deserve one, is bestowed on you by yours, affectionately….”