For enrichment, one must invest oneself. "One must invest oneself to become richer!" is the truth. You should understand that this is the basic rule of progress in the phenomenal world. You each want to expand your scope and make progress, right? If the answer is "Ye," you must invest yourself. Serious investment will make serious expansion and development possible. Casual investment will bring haphazard results, while serious investment will bring serious results. Is that true or false? Is it true or false? [It is true] Is that really so? [Yes]

In the Unification Church, we express this concept in simple terms by using the words, "sacrifice yourself in true ways," and believe that this is only possible through the road of true sacrifice. What is sacrifice? It is pouring out and investing oneself. If you want to do business you should give up money. You must give up the money that you have earned with the deepest love. Investing is the same. Do you understand? [Yes] Sacrifice in true ways means investing oneself. True investment... it means that you should make a true investment. (129-60)

For progress, there must be replacement with something of corresponding value. Without such supplement, development is not possible.

Everything is arranged much like the breathing of air that is needed for life. Why do you eat when you are hungry? In order for me to live on, I must provide myself with food. Providing alone is not enough. There must be metabolic activities to consume it. It must go around in circles. (165-67)

What is the basic law of progress? Unification must occur. You must follow this. If you follow it from now on, you will not fail. (He speaks while pointing to something he wrote on the board.) At this moment, you should know that it is a new age of embarkation. So, what does God do? Among those who live for the sake of themselves and those who live for the sake of their families, who should remain? Those who cherish family should remain. Therefore, God blesses those here who cherish family and lets them lead a good life. Then others will copy the example and naturally follow them. Do you understand? (96-81)

A perfect plus will beget a perfect minus. Therefore, if their heart becomes one there will come forth an object of true heart, while if vertically such a relationship cannot be established by connecting the heart of bride's love, horizontally multiplication will occur through the relationships of comrades, family, or compatriots . (17-295)