Foundation
A foundation was the bottom layer of a structure, without which it couldn't stand. () Metaphorically, it referred to anything that formed the basis for a belief or society.

According to the Vulcan elder at the monastery at P'Jem, represents the Stone of J'Kah the foundation of all the Vulcans believe. A life of order and  through logic. ()

In 2268, Pavel Chekov located a foundation under the surface of Sigma Draconis VI, indicating that buildings had once been present above ground. ()

In 2370, a holographic gangster claimed to be "laying a foundation" in Keystone City when he placed a brick in a special slot. ()

In 2373, while attempting to regain self-control, Tuvok reminded himself that "logic is the foundation of function." ()

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Architecture