A History of Mathematical Notations: Vol. Ii
Florian Cajori
The Presocratic Philosophers
G. S. Kirk & J. E. Raven & M. Schofield
Principles
Ray Dalio
Theurgy and the Soul: The Neoplatonism of Iamblichus
Gregory Shaw & John Milbank & Aaron Riches
Beyond Good and Evil: Prelude to a Philosophy of the Future
Friedrich Wilhelm Nietzsche