The quote “Theologians may quarrel, but the mystics of the world speak the same language” is often attributed to Meister Eckhart, a German theologian, philosopher, and mystic of the late 13th and early 14th centuries. However, tracing this exact quote to a specific work of Meister Eckhart is challenging. Eckhart’s teachings emphasized the direct, personal experience of God, which aligns with the sentiment expressed in the quote.

It’s worth noting that many profound statements attributed to historical figures like Meister Eckhart can sometimes be paraphrased, misattributed, or popularized in forms that don’t exactly match their original writings or speeches. This is particularly true for mystics like Eckhart, whose works have been translated and interpreted through various languages and cultural lenses over centuries.

If you’re looking for this quote in Eckhart’s original texts, it might be difficult without more context or a specific reference. His writings are extensive and have been subject to a wide range of interpretations. For a definitive source, you might explore academic or scholarly resources focused on Eckhart’s work or collections of his teachings, keeping in mind that the exact phrasing might vary due to translation and interpretation.