Not until we know in God.
And if anyone thinks that he knows anything, he knows nothing yet as he ought to know. But if anyone loves God, this one is known by Him. 1 Corinthians 8.1
We do not truly know anything when we know it merely as a thing in itself, or even with respect to its function or context.
We see a gear and recognize it as such - an object of metal work cut into a toothed circle. But where does this gear belong? What is its function?
It is a gear for a clock, we say. That is certainly more complete knowledge, but even at this point we do not know anything as we ought to know.
What is a clock? What is its function? It is a tool for keeping track of and reporting the hours of the day, and its numerous gears enable it to do so.
But why do we need such a device? Why should we care what time it is? Because time is precious, and we must make good use of it.
Why is time precious? It is the gift of God in which we have opportunity to know, serve, and glorify Him.
Thus, a gear is a valuable bit of craftsmanship that helps us in understanding and making good use of the gifts of our good and loving God. We only know a gear when we understand it in the light of the divine economy and when knowing it leads us to know and love God, Who gives such gifts to men.
This is true for everything else as well. We only know truly when we achieve the knowledge of God through what we know, and are thus able to give thanks and praise to Him for all things, and to use all things in ways that comport with and express our knowledge of and love for Him.
All knowledge is only partial until it finds its full meaning in God.