I noticed this fact earlier today in a CNN article entitled, "Speak Your Truth." I think the article originated at Oprah.com. What is interesting about the article is that the author confuses truth with opinion and personal preference. Ironically, the person described in the article acts (whether he knows it or not) based upon what is accepted as absolute truth.
The bible has something to say about all this. In scripture, truth is defined by God and is therefore objective. We are reminded of this in Ephesians 4:15, which says, "Rather, speaking the truth in love, we are to grow up in every way into him who is the head, into Christ." (ESV)
As followers of Christ, we must engage the culture by presenting truth as objective. We cannot surrender the truth that real truth exists.
The good thing for us is that God has created all humans in His image. Because of this, we all believe in absolute truth to one degree or another. Some folks deny the existence of absolute truth in theory, but when it comes down to their own lives/rights/property, they will revert to absolute truth.
Let us engage the culture with the truth of the gospel.