Drop the habit of thinking unnecessarily
Concentration is not thinking one thing. It is, on the other hand, putting off all other thoughts which obstruct the vision of our true nature…….. The habit makes us believe that it is difficult to cease thinking. If the error is found out, one would not be fool enough to exert oneself unnecessarily by way of thinking.
Talks with Sri Ramana Maharshi
14th April, 1937
Talk 398.
Drop the habit of thinking unnecessarily