At university, knowledge is considered to be something that is open to change. It represents our best view at the time, but that view can change if we are presented with more convincing evidence. There are no permanent rights and wrongs, truths and falsehoods. Everything depends on context.
One subject area may have a different way of constructing and writing about knowledge to another. Arts or Performance disciplines may have their own sets of languages and theories about evidence that emerges from practice, for example. It is important to be aware of these differences by noticing the way that knowledge is talked about and written about in your field.