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First published in 1785, this is still one of the most widely read and influential works on moral philosophy. This Broadview edition combines a newly revised version of T.K.

This edition of Prolegomena includes Kant’s letter of February, 1772 to Marcus Herz, a momentous document in which Kant relates the progress of his thinking and announces that he is now ready to pr

First appeared as a short story in Astounding Magazine, 1926.

An unidentified space ship lands in a Colorado lake. Equipped with a paralyzing ray weapon, the creatures begin taking human prisoners.

Bors felt as if he'd been hit over the head. This was ridiculous!

Joe had helped launch the first Space Platform--that initial rung in man's ladder to the stars.

The novel concerns the first interstellar flight, financed by making it into a television show.

When the blue plague appeared on the planet of Dara, fear struck nearby worlds. The fear led to a hate that threatened the lives of millions and endangered the Galactic peace.

The Fundamental Principles of the Metaphysic of Morals, also known as The Groundwork of the Metaphysics of Morals or Foundations of the Metaphysics of Morals or Grounding of the Metaphysics of Mora