On the theory of natural selection we can clearly understand the full meaning of that old canon in natural history, " Natura non facit saltum" .

在自然选择的理论中， 我们可以清楚地理解博物学中那句古老的经典“Natura non facit saltum” 的全部含义。

Hence, the canon of " Natura non facit saltum" , which every fresh addition to our knowledge tends to confirm, is on this theory intelligible.

因此，“Natura non facit saltum” 的经典，我们知识的每一个新增加都倾向于证实， 在这个理论上是可以理解的。