To many the path becomes easier if they believe in God. But the life of Buddha shows that even a man who does not believe in God, has no metaphysics, belongs to no sect, and does not go to any church, or temple, and is a confessed materialist, even he can attain to the highest. We have no right to judge him. I wish I had one infinitesimal part of Buddha's heart. Buddha may or may not have believed in God; that does not matter to me. He reached the same state of perfection to which others come by Bhakti — love of God — Yoga, or Jnâna. Perfection does not come from belief or faith. Talk does not count for anything. Parrots can do that. Perfection comes through the disinterested performance of action.
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 4/Lectures and Discourses/On Lord Buddha