性行为的发展

性行为的发展概述

生命起伏之说

当我们试图解释人的性行为发展的时候，必须切记每一个生命体的独特个性。

再重复一遍，当要说起一个生命体的诞生、成熟、衰老和终结的时候，确实并不意味着这是一个简单的轮回过程。至多，她可能提示着一个起伏的过程，并且只有把体力和性能力作为指标的时候才能这么认为。可是，诸如爱的能力和体验快乐的能力这些另外的评判指标又该如何呢？可能会出现伏起(先低后升)的特征——稳步上升并随着个体的死亡而最终嘎然而止。

无论如何，我们必须防止未经努力而图省事的比较。不能把我们在这里解释的性行为的发展过程错误地理解成每一个人所具有的一个标准或一种定式。可是，有病的人或健康不佳的人的性行为发展就会偏离这种模式。人的性行为是如此之复杂和种类如此之繁杂，以至于对它的任何解释可能只不过是一种很不精确的概括而已。虽然如此，这种解释至少可以帮助我们理解我们自己的某些性行为发展的基本实情。

A. 个体生命发展[1]：这条曲线表示人从诞生到成熟、衰老和死亡的典型的个体生命发展过程。数字是指每生存10年。此处，就像随后的曲线一样，假定一个人相当地长寿。 B. 性能力：这条曲线表示男性从诞生经过青春期和成年期到老年期的性能力的平均值。请注意这段逐渐斜行随后于成年早期达到峰值的曲线。C. 体验快乐能力：这条曲线表示人的爱与体验快乐的可能能力。请注意这段稳步上升直到死亡的曲线特征。

Development of Sexual Behavior

Introduction

A Curve?

The unique character of each human life also has to be kept in mind when one tries to describe human sexual development. Again, one may speak of a beginning, of maturation, decline and an ending, but this does not imply a cycle. At most, it may suggest a rising and falling curve, and this only if physical strength and sexual capacity are used as the only criteria. However, another criterion, such as the capacity to love and to experience happiness, could produce a very different curve - steadily rising and finally abruptly ending with the person’s death. In any case, we have to guard against facile comparisons. The sexual development we describe here is not to be misunderstood as a norm, binding for everyone. It is not a pattern from which only sick or bad people deviate. Human sexual behavior is so complex and varied that any description of it can be nothing more than a vague generalization. Even so, it can help us understand at least some basic facts about ourselves. A. Biological development. The curve represents the typical human biological development from birth to maturity, decline, and death. The numbers refer to decades of life. In this, as in the following graphs, a rather long life is assumed. B. Sexual capacity. The curve represents the average male sexual capacity from birth through puberty and adulthood to old age. Note the gradual decline after the peak in early adulthood. C. Capacity for happiness. The curve represents the possible human capacity for love and happiness. Note the steady rise until death.