That is the great difficulty. By great struggle we get a certain power of concentration, the power of attachment of the mind to certain things. But then there is not the power of detachment. I would give half my life to take my mind off that object! I cannot. It is the power of concentration and attachment as well as the power of detachment [that we must develop]. [If] the man [is] equally powerful in both — that man has attained manhood. You cannot make him miserable even if the whole universe tumbles about his ears.
- Swami Vivekananda
(Delivered in San Francisco, March 28, 1900)The Complete Works of Swami Vivekananda/Volume 1/Lectures And Discourses/Breathing