Formerly, his heart had been as a locked casket with its treasure inside; but now the casket was empty, and the lock was broken. Left groping in darkness, with his prop utterly gone, Silas had inevitably a sense, though a dull and half-despairing one, that if any help came to him it must come from without; and there was a slight stirring of expectation at the sight of his fellow-men, a faint consciousness of dependence on their goodwill.

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "Formerly, his heart had been as a locked casket with its treasure inside; but now the casket was empty, and the lock was broken. Left groping in darkness, with his prop utterly gone, Silas had inevitably a sense, though a dull and half-despairing one, that if any help came to him it must come from without; and there was a slight stirring of expectation at the sight of his fellow-men, a faint consciousness of dependence on their goodwill." in the context of "Chapter 10 (at page 81)" to mean that wisdom is timeless.