Tao Te Ching

“Mathematics reminds you of the invisible form of the soul; she gives life to her own discoveries; she awakens the mind and purifies the intellect; she brings light to our intrinsic ideas; she abolishes oblivion and ignorance which are ours by birth.”

— Proclus Lycaeus Πρόκλος ὁ Διάδοχος 412 – 485 CE via Morris Kline
"The most influential Ancient Greek philosopher you've never heard of"