Therefore, most knowledge is subjective. While there are universal truths that have been backed up by evidence – for example, currently, we believe that the Earth is round, and it's been backed up by pages of evidence from scientists. This is universal and objective – unless new theories come out which have evidence to back it up and disprove the current one, this truth applies to everyone and cannot be seen in different ways. However, apart from universal truths, knowledge to one person is based on their values, experiences and beliefs, which all determine the way they interpret it.