On the other hand, practical reason is the power of the mind engaged in deciding what to do. It is also referred to as moral reason, because it involves action, decision, and particulars. Though many other thinkers have erected systems based on the distinction, two important later thinkers who have done so are  Aquinas (who follows Aristotle in many respects) and Immanuel Kant. References Immanuel Kant, Critique of Pure Reason [1781/1787], trans. Norman Kemp Smith, N.Y.: St. Martins, 1965. Karim Mojtahedi, Kant's Critical Philosophy, Tehran: Amir Kabir, 1999. 
On the other hand, practical reason is the power of the mind engaged in deciding what to do. It is also referred to as moral reason, because it involves action, decision, and particulars. Though many other thinkers have erected systems based on the distinction, two important later thinkers who have done so are Thomas Aquinas (who follows Aristotle in many respects) and Immanuel Kant. Immanuel Kant, Critique of Pure Reason [1781/1787], trans. Norman Kemp Smith, N.Y.: St. Martins, 1965Karim Mojtahedi, Kant's Critical Philosophy, Tehran: Amir Kabir, 1999 References
A
Thomas
D
References
R
1965. Karim
1965Karim
R
1999.
1999
A
References