There is a conflict in Arjuna's heart between his emotionalism and his duty. The nearer we are to [beasts and] birds, the more we are in the hells of emotion. We call it love. It is self-hypnotisation. We are under the control of our [emotions] like animals. A cow can sacrifice its life for its young. Every animal can. What of that? It is not the blind, birdlike emotion that leads to perfection. ... [To reach] the eternal consciousness, that is the goal of man! There emotion has no place, nor sentimentalism, nor anything that belongs to the senses — only the light of pure reason. [There] man stands as spirit.
- Swami Vivekananda
(Delivered In San Francisco, on May 28, 1900)The Complete Works of Swami Vivekananda/Volume 1/Lectures And Discourses/The Gita II