Incompatibility of temperament simply implies that two individuals are so constituted that they cannot, or will not, adapt themselves to the temperamental characteristics of each other. This condition is one of the most prolific causes of unfortunate marriages. Age has a great deal to do with this situation. Men over thirty have unconsciously developed habits of judgment and are too set in their opinions and ways to accommodate themselves easily, or without friction, to the temperamental differences that will undoubtedly exist in their wives. The spirit of adaptation, which is a characteristic of younger years, is lacking, and a mental readjustment is scarcely to be expected. We, therefore, frequently observe in the marriage relations of certain individuals a spirit of friendship existing rather than that of companionship which should be the quality that binds them together. Statistics prove that "affinities" creep into the lives of those who marry early, or in those who marry after thirty. This form of domestic infelicity may be rightly regarded as a product of "incompatibility of temperament." A happy marriage need not be a successful one. Some couples attain happiness through sorrow, grief, and failure. The so-called happy marriage, like happiness itself, is only a myth, made up of anticipation and memory. You have only to look into the calm and wrinkled faces of old women, and talk to them to discover that the outcome of unselfishness and abnegation forms the nearest approach to happiness in married life or out of it. It is the bearing of the burdens of life that constitutes its happiness. THE EVILS OF EARLY MARRIAGE.--No woman has the vitality to stand the strain of maternity before the twenty-third year. If a girl marries at eighteen years of age she gives the world children totally unfit to struggle with its problems. At about twenty-two years she may give one child of value to the world, but all others following will be increasingly unfit. In early marriages children are apt to come too frequently, and this is one cause of infant mortality. Statistics show that children born with an interval between them of only one year have a mortality of one hundred per cent, higher rating than those born with an interval of two years. And if these children are the progeny of very young mothers the percentage is even greater. The percentage of children who are malformed and idiotic is greater among those born of too young parents. It has been shown that the child can only inherit what the parents possess. If the parents are not of an age when all the powers are at their highest, the child is robbed of just this amount of growth and force lacking; no amount of education or training can supply this loss.