Science is the father of knowledge, but opinion breeds ignorance.

The quote, “Science is the father of knowledge, but opinion breeds ignorance,” is attributed to Hippocrates, the ancient Greek physician often called the “Father of Medicine.” Hippocrates revolutionized the practice of medicine in the 5th century BCE by insisting on systematic observation, logical reasoning, and evidence-based approaches rather than superstition or myth. This statement reflects his belief in science as the true foundation of knowledge, while warning against the dangers of unchecked opinion.

The first part, “science is the father of knowledge,” emphasizes that genuine knowledge comes from careful study, experimentation, and observation. For Hippocrates, medicine had to move away from guesswork and mystical explanations to become a rational discipline grounded in evidence. By calling science the “father,” he acknowledged it as the source from which all reliable knowledge originates.

The second part, “opinion breeds ignorance,” highlights the problem of relying on personal belief or speculation without evidence. Opinion, when not tested against facts, leads people away from truth and into ignorance. In the context of medicine, this could mean mistreating patients based on superstition rather than curing them with proven methods—something Hippocrates strongly opposed.

Ultimately, this quote embodies the shift from myth to rational inquiry that defined the birth of science in ancient Greece. Hippocrates reminds us that progress and true knowledge depend on disciplined investigation, while unexamined opinions only deepen misunderstanding. His insight remains timeless, underscoring the importance of evidence and reason in every field of human learning.