Metaphysics

Free to read here, from Project Gutenberg.

The Problems of Philosophy

Bertrand Russell, also an audiobook

Kant's Prolegomena to Any Future Metaphysics

Immanuel Kant, also an audiobook

Creative Evolution

Henri Bergson, also an audiobook

Six metaphysical meditations

René Descartes, also an audiobook

Chance, Love, and Logic: Philosophical Essays

Charles S. Peirce

Träume eines Geistersehers, erläutert durch Träume der Metaphysik

Immanuel Kant

German

Elements of metaphysics

A. E. Taylor

Old-Fashioned Ethics and Common-Sense Metaphysics

William Thomas Thornton

Kant prolegomenái minden leendő metafizikához

Immanuel Kant

Hungarian

Zur neuen Lehre: Betrachtungen

H. Druskowitz

German

Henkinen tarmo

Henri Bergson

Finnish