It is important that we gather or collect first credible sources before we arrrive to the evaluation of their content in order to save up time. Also, we are able to compare the contents of many sources to be able to properly sort them out depending on their relevance to the issue.
the reason why it is important to collect credible sources before evaluating their content is: Collecting credible sources saves time and energy
Without having a credible source, you have to make an additional effort to double crosscheck the validity of the data that your source give, which increase your working time and deplete your energy
