Dhammatthavagga - The Just or the Righteous :
Not only by mere morality, nor again by much learning, nor even by gaining concentration, nor by lonely lodging, (thinking) "I enjoy the bliss of renunciation not resorted to by the worldling", (not with these) should you, O bhikkhu, rest content without reaching the extinction of the corruptions.
Dhammapada Verse 271.