rice, can't get by husking paddy

 
In the Srimad Bhagwatam [10.14.4] this is also stated by Brahma: "My dear Lord, devotional service unto You is the best path for self-realization. If somebody gives up that path and becomes engaged in the cultivation of knowledge, or in speculation, he will undergo a troublesome process, without achieving any desired results. Just as a person who beats the empty husk of the wheat cannot get the grain, so those who are engaged simply in speculative knowledge cannot achieve the desired result of self-realization. Their only gain is trouble."    (More...)