"All credibility, all good conscience, all evidence of truth come only from the senses"

This quote by Friedrich Nietzsche recommends that the only method to acquire reliability, good conscience, and evidence of reality is through the senses. He is suggesting that the only way to truly know something is to experience it with our senses. He is recommending that we should not count on hearsay or pre-owned info, but rather depend on our own senses to get understanding. He is also suggesting that we need to not take anything at stated value, but rather utilize our senses to verify the fact. This quote is a tip to be mindful of our senses and to use them to acquire knowledge and understanding. It is likewise a tip to be skeptical of info that we can not confirm with our own senses.