§ 173
The marriage of two young people need not be postponed over a month or two after they have learned enough of each other to be sure that they are placing each motive, the love motive and the egoistic-social motive, in the proper relations to the other; namely, that the egoistic motive is recognized as being of less value toward their happiness. No fears should be allowed to enter their minds about the happiness of their marriage. Birth control should prevent any fear from the egoistic-economic point of view.