"The only ways of enquiry that lead to knowledge... the one way assuming that being is and that it is impossible for it not to be, is the trustworthy path, for truth attends it"

This quote by Parmenides is a reflection on the pursuit of understanding and the courses one can require to achieve it. He recommends that the only trusted method to get knowledge is to assume that being is and that it is difficult for it not to be. This is a reference to the principle of ontology, which is the study of being and existence. Parmenides is suggesting that by accepting the presence of being, one can then begin to check out and understand the world around them. He suggests that this is the only trustworthy path to knowledge, as truth will be exposed along the method.

This quote is a reminder that knowledge is not something that can be accomplished through blind faith or uncertainty. Rather, it requires a logical and reasoned approach, which begins with the approval of being. By taking this course, one can then explore the world around them and discover the truth. Parmenides' words are a reminder that knowledge is something that must be sought out and made, and that the only dependable method to do so is to accept the presence of being.