It is usually considered that the locus of truth is in propositions like"this flower is red",a notion that originates from Aristotle.Aristotle defined the truth of propositions as the combination and separation of words in thought,and the truth of propositions lies in their resemblance to things.However,Aristotle did not confine truth solely to propositions;there is a more important truth,namely the truth of the soul.1.True propositions are the most fundamental part of scientific knowledge.Propositions are composed of words or terms,which are combined and separated.True propositions,when combined,form reasoning,and necessary reasoning is proof.Science is a kind of possession of proof,a system of proof.2.In the truth of propositions,the subject or locus of truth is the proposition.In the truth of the soul,the subject or locus of truth becomes the soul.The truth of the soul requires transforming the externally oriented true propositions into an internal possession of the soul,generating a potential after the soul uses the true propositions.The truth of the soul can be categorized into practical truth and contemplative truth,namely prudence and wisdom.Both the truth of propositions and the truth of the soul are truths of being,but the latter is the more primary truth of being.3.The truth of propositions resides in propositions or sentences,i.e.,logos,while the highest being is nous.Does the distinction between the truth of propositions and the truth of the soul equate to the distinction between the truth of logos and the truth of nous?The two truths are not equivalent to the distinction between logos and nous.The truth of propositions is always a kind of truth of logos,but logos also includes non-propositional rhetorical sentences.Even if the truth of the soul converges into the two forms of perfection,prudence and wisdom,intellect and wisdom are closely related yet distinct.As a being with logos,human activities are all within the operation of logos,but this does not exclude the sharing and aspiration for nous.The soul,detached from the level of propositional truth and the possession of the truth of the soul,can achieve a separate,pure life of nous(thought)and be with the divine nous.4.The conception of truth in ancient Greek philosophy is closely related to its theory of the soul and metaphysics,thus establishing the dual conception of the truth of propositions and the truth of the soul.The Christian God is no longer a thought that only engages in the activity of self-fulfillment,unconcerned with all things.The essence of God is defined as infinite potential.As beings similar to God,humans can no longer resemble God through thought or reason but only through infinite will.Therefore,human ascension can no longer rely on science and thought but only on an ethical relationship with God.Contemplative science as a path to truth is denied,and thus,the object adorned by truth or the locus of truth can only be propositions,and truth is no longer associated with the ascension of the soul.