In John 14:6, we are told who the truth is.
Truth is an absolute (the only valid reference point of real knowledge). The human race never really had an unquenchable thirst for truth. To the human race, truth is considered slightly interesting but too restrictive and limits creativity for illegitimate and self-serving purposes. The truth is non-negotiable and is often actively avoided with sinister intent in order that "little evils" can be carried out. Peace and harmony are logical (peaceful coexistence), evil is illogical. In order for someone to cause evil and work out their "naughty" or sneaky schemes (including heated arguments), they must be unreasonable and not allow an atmosphere of peace to prevail, they know that they must create a state of chaos, confusion and uncertainty in order that evil may occur.
Sadly, the human race has never found a strict dedication to truth very useful. Before Jesus went to the cross, Pilate asked Jesus "What is truth?". In scripture, there are many, many verses that we "pass over" out of convenience. This is done because the spirit requires a movement of the heart, and humanity finds it much easier to comply with a book. Basically, humanity is satisfied thinking of the bible as a "roadmap to heaven" with easy to follow directions. It is only the brave and sincere, who have not only faith, but "the greatest of these" (1 Corinthians 13:13) for God and their fellow human being that will be able to find the "depths" of God (1 Corinthians 2:10) because they have learned to see things as a dichotomy (two sided coin)...truth or NOT truth, good or NOT good (Hebrews 5:14, the mind and conscience is trained to distinguish as a sword would do, Ephesians 6:17).
What Pilate said was actually a very philosophical statement about the irrelevance of truth to humanity. It was not answered, but we could almost imagine that the skys cracked and the thunders roared as Pilate was talking to the speaker in John 14:6.
(All verse are from the Revised Standard Version).