A generous and elevated mind is distinguished by nothing more certainly than an eminent degree of curiosity. - Samuel Johnson

Nothing ... will ever be attempted, if all possible objections must be first overcome.

Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it. When we enquire into any subject, the first thing we have to do is to know what books have treated of it. This leads us to look at catalogues, and at the backs of books in libraries.

Curiosity is, in great and generous minds, the first passion and the last.