Kant, Immanuel (1724-1804) - Germany's most renowned philosopher, his
writings deal in part with rational understanding. Kant was the first
major philosopher to make his living as a teacher of the subject.
Critique of Aesthetic Judgement (1790) - The first half of Kant's Critique
of Judgement. Although this work contains some new ideas, it is commonly
regarded as a series of addenda to his earlier Critiques.