"Sane judgment abhors nothing so much as a picture perpetrated with no technical knowledge, although with plenty of care and diligence"

This quote by Albrecht Durer speaks with the importance of technical knowledge in producing art. He is recommending that even if an artist puts in a lot of effort and care into producing a piece of art, without technical knowledge, the outcome will be unsatisfactory. He is emphasizing the need for technical knowledge in order to create a successful art piece. Durer is suggesting that without technical understanding, the artist will not have the ability to develop an art piece that is of a high quality. He is likewise suggesting that without technical knowledge, the artist will not have the ability to develop an art piece that is aesthetically pleasing. Durer is emphasizing the value of technical understanding in creating art and is recommending that without it, the artist will not have the ability to develop an effective piece of art.