It is foolish of you to build a castle in the air while forgetting to drive in pilings for its foundation. ✬

The rumor was without foundation. ✬

This house has a solid foundation. ✬

Columns provide a solid foundation. ✬

Tom received a grant from the National Science Foundation. ✬

Tom was awarded a research grant by the National Science Foundation. ✬

Love for your parents is the foundation of all virtues. ✬

The building is managed by a local cultural foundation. ✬

The building is managed by a local arts foundation. ✬

Mathematics is more than arithmetic. Scientists, and philosophers throughout history have called it the foundation of all knowledge, and praise its simple beauty. ✬