Right knowledge has three sources: direct cognition, inference and the words of the awakened ones.

正确的知识有三个来源：直接的认知、推论和开悟者的话。

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Direct cognition is where you look for your answers. You can really become self-directing if you realize you have that directive force right within you.

直接感知是当你在寻找答案时，确实变得用自己的意识在向导自己，在你意识到身体中有一种向导力在牵引的时候。

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There is, moreover, direct evidence that infections and parasites affect cognition.

此外，还有传染病和寄生虫影响认知能力的直接证据。

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Although data are still lacking on the direct impact of mobile technology on cognition, there is extensive evidence showing that our brains are exquisitely sensitive to external interference by both irrelevant distractions and multitasking.

CNN: How mobile tech can influence our brain

There is, moreover, direct evidence that infections and parasites affect cognition.

ECONOMIST: Disease and intelligence