T'Plana-Hath (matron)

T'Plana-Hath was an ancient Vulcan known as "Matron of Vulcan Philosophy". One of her commonly quoted sayings was, "Logic is the cement of our civilization, with which we ascend from chaos, using reason as our guide."

Years later, the Vulcan High Command named vessels after the philosopher in homage, such as the , a landing craft. Starfleet's USS T'Plana-Hath was also presumably named after her.