It is an activity that requires a person to examine his or her thoughts, feelings and actions and learn from experience.

What is the science and art of correct thinking?

The type of philosophical reflection which trains the mind to think logically. Also it is the ability of the mind to construct and evaluate arguments

One of the triumvirate Greek philosophers who pioneered a method of argument called dialectic

It is considered as the process of thinking about something in a logical way in order to form a conclusion or judgement.