Learning and wisdom are supersfluities, the surface glitter merely, but it is the heart that is the seat of all power. It is not in the brain but in the heart that the Atman, possessed of knowledge, power, and activity, has Its seat. " — The nerves of the heart are a hundred and one" etc. The chief nerve-centre near the heart, called the sympathetic ganglia, is where the Atman has Its citadel. The more heart you will be able to manifest, the greater will be the victory you achieve. It is only a few that understand the language of the brain, but everyone from the Creator down to a clump of grass, understands the language that comes from the heart. But then, in our country, it is a case of rousing men that are, as it were, dead. It will take time, but if you have infinite patience and perseverance, success is bound to come. No mistake in that.
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 6/Epistles - Second Series/CLIV Akhandananda