Critique of the Kantian philosophy
"Critique of the Kantian philosophy" is a criticism Arthur Schopenhauer appended to the first volume of his "The World as Will and Representation" (1818). He wanted to show Immanuel Kant's errors so that Kant's merits would be appreciated and his achievements furthered.
Meaning of life
Kantianism is a philosophy based on the ethical, epistemological, and metaphysical works of Immanuel Kant. Kant is known for his deontological theory where there is a single moral obligation, the "Categorical Imperative", derived from the concept of duty. Kantians believe all actions are performed in accordance with some underlying maxim or principle, and for actions to be ethical, they must adhere to the categorical imperative.