张景岳先生《宜麟策》，为求嗣者必读之书。今采诸书名论，编为四类以续之∶曰蓄
德，曰培元，曰布种，曰胎教。或补其未备之义，或发其未畅之旨，合而读之，遵而行
之，无弗子者矣。
孕元立本章云∶天地之大德曰生，人者天地之心也。具此生理，生生无穷，乃有无
子者曷故？观夫层冰积雪，天行肃杀之令，地合闭蛰之德，斯时生物亦鲜矣。人之气禀无
偏，而生机偶歇者，非其心之所趋，冬秋阴惨之气深，春夏阳和之气少乎？故不可录曰∶
残恶之人多无子，阴贼之人多无子，好杀之人多无子，淫乱之人多无子，财紧之人多无
子，清刻之人多无子，狷隘之人多无子，好洁之人多无子，是岂天定之哉？由人心之自
致耳。然人心至灵，如舟之有舵，一捩便转。其捩转之术如何？曰∶存仁而已矣，仁者生
之德，是以草木蔬谷百果之核，名之曰仁。植之无有不生者也。人能在在存仁，随地随时，
不放过去，如有言责者用其言，（如林给事疏减赈米，妻梦神责，二子皆死，门户遂绝，则
奏疏活人者，后嗣蕃昌必矣。）有官职者尽其职，（如虞允文禁民溺女，本无子而有子之类。）
将兵者不嗜杀，（如曹彬徐达子孙贵盛之类。）掌刑者不妄刑，（如马默除岛囚投海之例，本无
嗣而有子之类。）富者不私其富，（一切众生，以财为命，冻者得之暖，饥者得之饱，离者得
之合，死者得之生，财聚于我，宽一分，则人受一分之福，其仁岂不薄哉，多男之庆有
必然者。）贫贱者能尽其诚，（如任奔走效口舌，以解人之厄，恤人之难，隐人之过，成人之
善，步步是仁，所谓不费钱功德也。非求嗣之快捷方式乎？）凡此皆自尽其心而已。然已默契
夫天地生物之心，种豆者其苗必豆，种瓜者其苗必瓜，断断然矣。夫所谓捩转云何？即
改过之谓也，人非圣贤，孰能无过，过而能改，即求仁得仁，是故存仁之道。以改过为
先，欲求有子而且贤者，可不以此为首务哉？
Mr. Zhang Jingyue's *Yilin Ce* (Strategy for Producing Offspring) is a must-read book for those seeking heirs. Now, extracting profound theories from various books, I have compiled them into four categories to serve as a continuation: namely, Accumulating Virtue (Xude), Nourishing the Primordial (Peiyuan), Sowing Seeds (Buzhong), and Prenatal Education (Taijiao). Some supplement meanings not fully covered in the original, while others elucidate principles not thoroughly expounded. Reading these together and following their guidance, there will be none who fail to have children.
The chapter "Establishing the Chapter on the Primordial of Pregnancy" states: The greatest virtue of Heaven and Earth is generation; humans are the mind/heart of Heaven and Earth. Possessing this physiological mechanism of endless generation, why do some people lack offspring? Observe the time when layers of ice and piles of snow exist; Heaven issues commands of solemnity and killing, and the Earth conforms to the virtue of closing and hibernating. At this time, living creatures are few. If a person's Qi endowment is not biased, but their generative vitality occasionally rests, is it not because their heart tends towards the Yin and bleak Qi of Winter and Autumn, which is deep, while the Yang and harmonious Qi of Spring and Summer is scarce? Therefore, one cannot record that: cruel and evil people mostly have no children, insidious and treacherous people mostly have no children, those fond of killing mostly have no children, licentious people mostly have no children, stingy people mostly have no children, aloof and harsh people mostly have no children, irritable and narrow-minded people mostly have no children, and overly fastidious people mostly have no children. Is this determined by Heaven? No, it is brought about by the human heart itself. However, the human heart is extremely agile, like a rudder on a boat; with one turn, it changes direction. What is the technique for turning it? It is said: merely to harbor Ren (Benevolence/Humaneness). Ren is the virtue of life; thus, the kernels of grasses, vegetables, grains, and fruits are named "Ren." When planted, they all grow. If a person harbors Ren everywhere, at every place and time, letting no moment pass without action—if one has the responsibility to speak and uses words effectively (e.g., Lin Jishi submitted a memorial to reduce relief grain; his wife dreamed of divine reprimand, their two sons died, and the family line ended; conversely, those who submit memorials to save lives will surely see flourishing descendants), if one holds an official position and fulfills duties completely (e.g., Yu Yunwen prohibited the drowning of female infants, originally childless but later had children), if one leads troops and does not delight in killing (e.g., Cao Bin and Xu Da saw their descendants become noble and prosperous), if one manages punishments and does not inflict penalties arbitrarily (e.g., Ma Mo abolished the practice of throwing island prisoners into the sea, originally without heirs but later had sons), if the wealthy do not hoard their wealth (all sentient beings regard wealth as life; the frozen find warmth in it, the hungry find satiety, the separated find reunion, the dead find revival. If wealth accumulates with me, leaving a margin of one part brings one part of blessing to others. Is such Ren not profound? The joy of having many sons is inevitable), if the poor and lowly can exert their sincerity completely (e.g., running errands, using speech to resolve others' distress, sympathizing with others' difficulties, concealing others' faults, assisting others' goodness—every step is Ren, known as merit without cost. Is this not a shortcut to seeking offspring?). All these are merely exhausting one's own heart/mind. Yet, one secretly aligns with the Heart of Heaven and Earth in generating things. Those who plant beans will certainly have bean seedlings; those who plant melons will certainly have melon seedlings. This is certain. What does "turning" mean? It means correcting faults. Humans are not sages; who can be without fault? To have a fault and correct it is to seek Ren and obtain Ren. Therefore, the way of preserving Ren prioritizes correcting faults. For those wishing to have children who are also virtuous, can they not take this as their primary task?