Meaning: The quote "Reason is immortal, all else mortal" is attributed to the ancient Greek philosopher and mathematician Pythagoras. This statement encapsulates Pythagoras' belief in the enduring power of reason and intellect, contrasting it with the transient nature of all other aspects of existence. Pythagoras is renowned for his contributions to mathematics, philosophy, and the concept of the immortal soul, and this quote reflects his deep understanding of the fundamental principles that govern the universe.

Pythagoras is best known for the Pythagorean theorem, which states that in a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. This theorem has had a profound impact on the field of mathematics and is a testament to Pythagoras' intellectual prowess. Beyond mathematics, Pythagoras also made significant contributions to the fields of music theory, astronomy, and philosophy.

The quote "Reason is immortal, all else mortal" can be interpreted in various ways, reflecting Pythagoras' multidisciplinary approach to knowledge. On a philosophical level, it suggests that reason, logic, and rationality are timeless and enduring, transcending the limitations of mortal existence. In contrast, the transient nature of all else implies the impermanence of physical forms, emotions, and material possessions. This dichotomy between the immortal and the mortal reflects Pythagoras' interest in metaphysical concepts and the nature of reality.

In the context of mathematics, the quote can be seen as a reflection of Pythagoras' belief in the universal and eternal truths that govern the natural world. Mathematical principles, such as the Pythagorean theorem, are not subject to decay or change; they are immutable and timeless. This aligns with Pythagoras' view that the pursuit of knowledge and understanding leads to the discovery of eternal truths that are not bound by the constraints of mortality.

Furthermore, the quote can also be interpreted in the context of Pythagoras' views on the soul and its immortality. Pythagoras believed in the transmigration of souls, the idea that the soul is immortal and undergoes a cycle of reincarnation. In this context, reason and intellect are considered to be essential qualities of the immortal soul, while all other aspects of existence are transient and subject to the cycle of birth and death. This reflects Pythagoras' broader philosophical and spiritual beliefs about the nature of the self and the universe.

Overall, the quote "Reason is immortal, all else mortal" encapsulates Pythagoras' profound insights into the nature of reality, the enduring power of reason, and the transient nature of mortal existence. It reflects his contributions to mathematics, philosophy, and metaphysics, and continues to inspire contemplation and reflection on the timeless nature of knowledge and the human intellect.