TL;DR: Declaration is regularly presented as the spiritual ancestor of Terre d'Hermès — signed by the same perfumer — but its very pronounced cumin note makes it a perfume that divides opinion far more than its successor.
A directly acknowledged kinship
A fact regularly highlighted by connoisseurs: Declaration and Terre d'Hermès share the same perfumer, which explains a certain kinship in olfactory approach between the two compositions — Declaration is often described as the earlier, more experimental version of that same creative sensibility.
Cumin: the signature note and point of contention
Where Terre d'Hermès was widely praised for its consensual balance, Declaration embraces a much more pronounced cumin and cardamom note, sometimes described as "waxy" by its detractors — a choice that led some to consider the perfume a real miss, and others to call it one of the house's best men's fragrances.
Declaration d'un Soir: a better-received variant
Declaration d'un Soir, released later in regular and Intense versions, is regularly cited as one of the best Cartier men's fragrances across all generations — a variant that managed to keep the spirit of the original composition while smoothing out some of its more polarizing aspects.
The rest of the Cartier catalog worth knowing
Beyond Declaration, Pasha, Santos, and Must de Cartier regularly come up in recommendations for those discovering the house — a catalog often larger than people imagine, for a brand primarily known to the general public for its jewelry.
Should you try Declaration despite its divisive character?
Yes, if you're curious to discover the olfactory roots of Terre d'Hermès in a rawer, less consensual version — but it's better to sample first before investing, since the cumin note clearly doesn't get unanimous approval.