Different parts of a person can be utilized to express themselves, and other parts can be adapted to be able to express oneself even further.  This can also be done in one's work.

Ecclesiastes 4:13 -- Better is a poor but wise youth than an old but foolish king who no longer pays attention to warnings.

Psalm 81:9 -- There must not be a strange god among you;
    you must not bow down to a foreign god.

1 Corinthians 6:12 -- "Everything is permissible for me," but not everything is helpful. "Everything is permissible for me," but I will not be brought under the control of anything.

Often the best way to describe something that is wise always seems to come directly quoted from Father's own Word.  In fact, we wouldn't have anything to speak if Father didn't create the means to do so.

A lack of self control is a large warning that perhaps oneself is being governed by a foreign god that is not Father Yahweh, as Father condones self control.

At the same time, not properly taking care of all that Father has provided is a transgression against Father, Herself.  If one's self control brings oneself to the brinks of starvation, and that has been self-willed, then one has stepped off of Father's narrow path.  A part of Father's Way that was given in the 73rd ministry newsletter is to avoid stubbornness and self-will in spiritual things.  One's heart is a spiritual creation.  A while ago, it was noted that to some degree, there is a connection of spiritual things to what is physical.  In this, one must allow Father to guide oneself in all that they do.  Oneself may not be brought under the control of physical things, but they must submit to Father's Spirit.

John 3:8 -- "The wind blows where it pleases, and you hear its sound, but you don't know where it comes from or where it is going.  So it is with everyone born of the Spirit."

As well:

Proverbs 4:23 -- Guard your heart above all else, for it is the source of life.