Hope based on anything else would be in pieces by now.

'Constant, enduring, steadfast, equable, consistent, unfailing, fixed, imperishable, enduring, invariable, lasting, permanent, perpetual, unchanging, rigid, same, permanentstabile, static, unchanged, unfading, unfluctuating, continuing, uniform, unvarying, even, continuing, durable, everlasting, fast, indestructible, lasting, abiding, persistent, persisting, steady, changeless, immutable, eternal'...