tried and true in a sentence

Examples

1. The ethical lessons presented are tried and true.
2. "As a rule, we're pretty tried and true.
3. The engine is excellent, tried and true.
4. Sustainable development is old, tried and true.
5. Consistency, apparently, means the tried and true.
6. Hollywood's reassuring themes are tried and true.
7. It's been tried and true money ."
8. It's a tried and true formula.
9. "It's a tried and true thing,"
10. Tried and true _ or has-beens?