"What is a friend? A single soul dwelling in two bodies."

"Pain and suffering are always inevitable for a large intelligence and a deep heart."

"Man is unhappy because he doesn't know he's happy; it's only that. Whoever learns it will be happy at once, that instant."

"I believe that if one were to destroy in mankind the belief in immortality, not only love but every living force maintaining the life of the world would at once be dried up."

"It takes something more than intelligence to act intelligently."