Darwin had already made most of his major psychological discoveries even before he identified natural selection as the mechanism of evolution – but he waited 35 years before publishing his findings. This decision can be partly attributed to his meticulous approach to research, which entailed carefully collecting and studying evidence before presenting theories.
达尔文在认定自然选择才是进化机制之前便已做出了他的大部分心理学发现，但他等了35年才发表自己的发现。这一决定部分是因为他一丝不苟的研究精神，包括在发表理论之前细心收集和研究证据。