就像其他大多数控制面临的状况，这里有一个平衡点，实践是验证真理的唯一标准。
Like many other control situations, there is a trade off and the only way to really tweak it is to experiment.
实践者在此过程中，转换了真理的形态，获得了真理的内容，使自身的实践活动成为真理现实存在的形式，并使真理获得验证。
During this process, practicer transforms truth forms and obtains truth content to make one's practice activities become existing forms of truth and validated.
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