I'd like to say that all truth's are subjective, because we base all we know on our perception. Our perception, in turn, seems to always be limited due to lack of knowledge. Then we are forced to question and disprove what we previously held as true. Does that put the idea of truth itself in question? Or does this demand a search for the limits of knowledge, if there are such limits? This leads me to what tiberry said about the connection between truth and experience. A quote from William Blake, the opening lines of 'All Religions Are One'
"As the true method of knowledge is experiment the true faculty of knowing must be the faculty which experiences."
This faculty I treat of.

Perhaps that begins to put some of it together, or creates more confusion, or neither?