Solidity

“The Great Sphinx of Tanis” from ancient Egypt dates back over four thousand six hundred years. This stone statue has the body of a lion and the head of an Egyptian ruler. It expresses a sense of permanence and solidity.

All of Kahn’s buildings share a common solidity and heaviness. Experts say they are very different from the works of other famous architects of the period. These architects preferred light and airy buildings. Their weightless-looking structures were mostly made of glass and metal. Kahn used stone and concrete to make monumental buildings. Many of his structures look more ancient than modern.

Being convinced of your own unassailable rationality is like being convinced of the solidity of a mirage.

If colours, sounds, tastes, and smells be merely perceptions, nothing we can conceive is possest of a real, continu'd, and independent existence; not even motion, extension and solidity, which are the primary qualities chiefly insisted on.