| Year | 2006 |
| Date | 04-Aug |
| Volume | 197 |
| Issue | 4,279 |
| Page | 153 |
| Category | General |
| Part | 91 |
| Title | Letters to a Grandson |
| Author | M.J.H. Ellis |
| Notes | Concludes his discourse on the history of measurement and also adds a story about Einstein's humility. "I travelled third-class" |