Sense and Reason

Romans 8:6-10
6Now the mind of the flesh [which is sense and reason without the Holy Spirit] is death [death that [f]comprises all the miseries arising from sin, both here and hereafter]. But the mind of the [Holy] Spirit is life and [soul] peace [both now and forever].
7[That is] because the mind of the flesh [with its carnal thoughts and purposes] is hostile to God, for it does not submit itself to God's Law; indeed it cannot.
8So then those who are living the life of the flesh [catering to the appetites and impulses of their carnal nature] cannot please or satisfy God, or be acceptable to Him.
9But you are not living the life of the flesh, you are living the life of the Spirit, if the [Holy] Spirit of God [really] dwells within you [directs and controls you]. But if anyone does not possess the [Holy] Spirit of Christ, he is none of His [he does not belong to Christ, is not truly a child of God].(C)
10But if Christ lives in you, [then although] your [natural] body is dead by reason of sin and guilt, the spirit is alive because of [the] righteousness [that He imputes to you].

Pretty interesting when you think that without the Holy Spirit guiding our thoughts, and actions, it is all just logic, just reason. The Holy spirit is there for us to use everyday, in everything.