That intense faith in another world, that intense hatred for this world, that intense power of renunciation, that intense faith in God, that intense faith in the immortal soul, is in you. I challenge anyone to give it up. You cannot. You may try to impose upon me by becoming materialists, by talking materialism for a few months, but I know what you are; if I take you by the hand, back you come as good theists as ever were born. How can you change your nature?