Hegel said that `truth` is subjective, thus rejecting the existence of any `truth` above or beyond human reason. All knowledge is human knowledge.
Jostein GaarderYou can never know if a person forgives you when you wrong them. Therefore it is existentially important to you. It is a question you are intensely concerned with. Neither can you know whether a person loves you. Itโs something you just have to believe or hope. But these things are more important to you than the fact that the sum of the angles in a triangle is 180 degrees. You don't think about the law of cause and effect or about modes of perception when you are in the middle of your first kiss.
Jostein Gaarder