Whether this opinion about the primary entity is really so original and ancient is very possibly uncertain;in any case, Thales is said to have put forward this doctrine about the first cause.

• 关于原初存在体的意见是否真的这样源始和古老恐怕难以确定，但不管怎样，据说是泰勒斯第一个提出关于第一因的观点的。