Quote by Arthur Schopenhauer, Parerga and
The discovery of truth is prevented more effectively, not by the false appearance things present and which mislead into error, not directly by weakness of the reasoning powers, but by preconceived opinion, by prejudice.
Summary
This quote suggests that the search for truth is often hindered not by our inability to reason or by the deceptive appearances of things, but rather by our preconceived notions and biases. Our existing opinions and prejudices can cloud our judgment, making it difficult to objectively pursue and uncover the truth. It implies the importance of open-mindedness, willingness to question our own beliefs, and to approach knowledge with a sense of intellectual humility.