潜意识是本能活动的源泉。

The subconscious is the source of instinctive action.

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一切本能活动的主要任务……是在于引发学习的过程。

The main task of all instinct activities... Is the learning process.

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尽管一定程度的“猜测”在很多评估活动中是不可避免的，它的主要风险在于它依赖于个体的知识、经验以及本能。

Although some amount of "guesstimation" is inevitable in most estimation activities, the main risk here is its reliance on the expertise, experience, and, often, the instincts of a single individual.

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