Man is not only reason but also heart (Saint Nektarios of Aegina)
Man is not only reason but also heart. The powers of these two centers, mutually assisting one another, render man perfect and teach him what he could never learn through reason alone. If reason teaches about the natural world, the heart teaches us about the supernatural world... Man is perfect when he has developed both his heart and his intellect. Now the heart is developed through revealed religion
Saint Nektarios of Aegina