Historical clue formulations

• Reservations — 2026-06-11
• "No ___!" — 2025-12-10
• "The origin of wisdom," per René Descartes — 2024-03-09
• "When in ___, don't" (maxim attributed to Benjamin Franklin) — 2023-06-30
• Impostor syndrome feeling — 2022-04-07
• Reservation — 2020-05-29
• Call into question — 2019-06-30
• Uncertainty — 2018-07-22
• "But what if I'm wrong?" feeling — 2017-08-21
• It may be reasonable to a jury — 2017-03-20
• "When in ___, tell the truth": Mark Twain — 2015-12-20
• "The beacon of the wise," per Shakespeare — 2015-04-25
• Its shadow is often cast — 2011-06-25
• "No ___!" ("Of course!") — 2011-03-15
• Question — 2003-01-05
• "When in ___ tell the truth": Twain — 2000-08-06
• Harbor suspicions — 1999-03-08
• "I ___ it" — 1997-10-11
• Cornerstone of Cartesianism — 1997-09-05
• Skepticism — 1996-02-13
• Act like the Apostle Thomas — 1994-03-15