人的“个别差异”是一个非常微妙的问题。世界上没有两个在身体发育与心理发展上完全相同的人,就是同胞双生也不例外。人的个别差异的原因,概括起来说不外生物的和社会的两个方面。前者即来自遗传的“禀赋”。禀赋又称素质,具体地说就是人的与生俱来的解剖、生理的特点。人的这些方面的差异,对其将来走什么“道路”和成就如何,具有重要的意义。遗憾的是,这个制约人的发展的因素,就现在的科学发展水平来说,还是一个无可奈何的因素。我们无法使一个身体矮小的人变成一个身材高大的人;同样,我们也无法使一个大脑发育不健全的弱智孩子变 People’s “individual differences” is a very delicate issue. There are no two people in the world who are exactly the same in physical development and psychological development, that is, siblings are no exception. The reason for the individual differences of people is generally speaking both biological and social aspects. The former is from the genetic “endowment.” Endowment, also known as quality, specifically, is the inherent anatomical and physiological characteristics of people. The differences in these aspects of mankind are of great significance to what “path” and achievement they will take in the future. Regrettably, the factors that govern the development of the economy are still a helpless factor in terms of the current level of scientific development. We can not turn a short person into a tall person. Likewise, we can not change a mentally handicapped child whose brain is not well developed