[The conquest of internal nature] is the only way out, according to Yoga.... The thirst for God is religion.... Good works and all that [merely] make the mind a little quiet. To practice this — to be perfect — all depends upon our past. I have been studying [Yoga] all my life and have made very little progress yet. But I have got enough [result] ...to believe that this is the only true way. The day will come when I will be master of myself. If not in this life, [in another life]. I will struggle and never let go. Nothing is lost. If I die this moment, all my past struggles [will come to my help]. Have you not seen what makes the difference between one man and another? It is their past. The past habits make one man a genius and another man a fool. You may have the power of the past and can succeed in five minutes. None can predict the moment of time. We all have to attain [perfection] some time or other.
- Swami Vivekananda
(Delivered in San Francisco, April 5, 1900) The Complete Works of Swami Vivekananda/Volume 1/Lectures And Discourses/Practical Religion: Breathing And Meditation