Nasir al-Din al-Tusi
He developed the Tusi couple, a mathematical device that allowed for the generation of linear motion from circular motion, impacting later models.
Most quoted
"To be a true scholar, one must be willing to admit error, even if it means losing an argument to a younger, less experienced mind. A bitter pill, but necessary."
— from Attributed
"The apparent retrograde motion of the planets is not a true motion, but an illusion caused by the combination of their own motion and the Earth's motion."
— from Al-Tadhkira fi 'ilm al-hay'a (Memoir on Astronomy)
"To truly understand the heavens, one must first understand the limitations of the earthly mind. A task often more challenging than mapping the stars."
— from Attributed
All quotes by Nasir al-Din al-Tusi (433)
To understand the cosmos is to glimpse the wisdom of its Creator.
The pursuit of knowledge is a form of worship.
Fear of death is born of ignorance of the true nature of the soul.
The soul's journey is from the temporal to the eternal, from the particular to the universal.
Reason is a divine gift, enabling us to discern truth from falsehood and good from evil.
The greatest beauty is the beauty of the soul, adorned with virtues.
Humanity's purpose is to reflect the divine attributes, to become a microcosm of the macrocosm.
The world is a bridge; pass over it, but build no house upon it.
Patience is the key to unlocking the mysteries of the universe and the secrets of the soul.
The true measure of a person is not their wealth or status, but their character and their wisdom.
Every moment is an opportunity for spiritual growth and self-improvement.
The universe is not chaotic, but ordered by divine wisdom, and its laws are a testament to its Creator.
To live a meaningful life is to live in harmony with oneself, with others, and with the divine.
The light of consciousness is a spark of the divine light within us.
The path to truth is arduous, but its reward is eternal bliss.
The beauty of creation points to the infinite beauty of the Creator.
The human heart is a sanctuary, where the divine presence can be found.
Do not be deceived by the fleeting pleasures of this world; seek the enduring joy of the hereafter.
The purpose of philosophy is to purify the soul and prepare it for its return to its divine origin.
Every soul is unique, yet all are connected to the one universal soul.