The 8th Habit
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The prince
Machiavelli, Niccol, 1469-1527
Hypercomplex Numbers: An Elementary Introduction to Algebras
I. L. Kantor & A. S. Solodovnikov
The Theology of Arithmetic: On the Mystical, Mathematical and ...
Iamblichus
Rework
Jason Fried & David Heinemeier Hansson