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无论在动物学或植物学中,应把种(Species)看为一群相似个体的综和,它们始终繁殖相似的个体。我说的个体间的相似,是指种的主要性状方面,因为包含在这个种内的个体,经常表现出不定的差异,这差异决定了变种的存在,而在某些情况下给予性别的差异,但是所有这些个体属于同一个体,例如雄性大麻和雌性大麻,全部的雌雄性大麻个体组成我们通常播种的或栽培的大麻这个种。由此可见,若没有固定不变地繁殖彼此相似的个体,则不可能存在有固定的种。所以,把种当作是为我们所观察到的多种无机物一样是错误的。根据这些原则,也决不能否认种真实存在于自然
Species, in zoology or botany, should be considered as a composite of similar individuals, who always breed similar individuals. The similarity between individuals I refer to refers to the major traits of species because the individuals included in this species often exhibit indefinite differences that determine the presence of the variant and in some cases give a gender difference , But all of these individuals belong to one and the same individual, such as marijuana and marijuana, and all marijuana individuals make up the species of cannabis we normally sow or cultivate. Thus, it is not possible to have a fixed species without multiplying individuals that are similar to each other. Therefore, it is wrong to regard the species as a variety of inorganics that we have observed. According to these principles, it must not be denied that the species actually exists in nature