For a long time I supported the idea that there was some objective truth out there, something we could aim to move closer towards, some ultimate understanding of the universe. It seemed to me that the statement "There is no truth" was nonsense, something that couldn't even be coherently uttered or claimed. But now I am not so sure. I now believe that the very notion of truth not only is subjective, it requires subjectivity. The truth of a statement is dependent on the observer. This is true in the trivial sense of normal conversation, for example when I say "my clothes look good." The truth of this statement depends on the person looking at me (for that person). But this is just a trivial example, where it is easy to see the subjectivity. Take another statement, such as "humans cannot fly." Seems to be objectively true, but to a person who truly, absolutely believes he can fly with such strength that he will continue to believe it until he hits the ground and ceases existing. For this person humans can fly. If someone told him humans couldn't he would think that person just as crazy as we find him. Now you could say that he was 'actually' falling, not flying, but you can only say that from the standpoint of your observation. That truth is still observer dependent. So now lets take the strongest (to many people) sense of truth. Universal statements such as: 2+2=4, the universe exists, P.-P is always false. It seems like 2+2=4 will be true regardless of what humans think of it. If they say 2+2=5 then they must necessarily either be wrong or have different meanings for the symbols they use. But modern quantum science seems to suggest otherwise, a thing can both "be" and "not be," depending on how it is observed! And all of math seems to be a rational system, internally coherent and self supporting, but not intrinsically true. It is, after all, based on certain postulates that cannot be proven. This suggests to me that truth itself is created by the observer, that "true" or "false" are labels we give, that we choose to give, to certain things, but they are not labels that are intrinsic in the things themselves. But the concept of truth requires that it not be subjective. Objective truth simply cannot be, the concept contradicts itself. In other terms truth is a categorical concept that attempts (and needs) to apply itself to things in themselves, but it cannot, and thus is a fundamentally self contradictory concept.