| Clue | Source | Date |
|---|---|---|
| *Description of a glass, maybe | New York Times | 05 Jan 2022 |
| *Like an optimist’s glass | Wall Street Journal | 09 Mar 2020 |
| Proverbial matter of perspective | New York Times | 15 Feb 2015 |
| Proverbial matter of perspective | ||
| Like an optimist's glass |