Analyzing Meaning: An Introduction to Semantics and Pragmatics
Paul R. Kroeger
Mental Leaps: Analogy in Creative Thought
Paul Thagard & Keith James Holyoak
Mental Chemistry
Charles F. Haanel
Epistemology
Richard Fumerton
Gesammelte Werke - Band II - Astrnomie Pars Optica
Johannes Kepler & Franz Hammer
Milton Friedman on Freedom
Milton Friedman & editors