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 of Athens, and Hyperates, the mathematician, were all traders. Plato, called the Divine by reason of the excellence of his wisdom, defrayed his travelling expenses in Egypt by the profits derived from the oil which he sold during his journey. Spinoza maintained himself by polishing glasses while he pursued his philosophical investigations. Linnæus, the great botanist, prosecuted his studies while hammering leather and making shoes. Shakespeare was a successful manager of a theatre—perhaps priding himself more upon his practical qualities in that capacity than on his writing of plays and poetry. Pope was of opinion that Shakespeare's principal object in cultivating literature was to secure an honest independence. Indeed, he seems to have been altogether indifferent to literary reputation. It is not known that he superintended the publication of a single play, or even sanctioned the printing of one; and the chronology of his writings is still a mystery. It is certain, however, that he prospered in his business, and realized sufficient to enable him to retire upon a competency to his native town of Stratford-upon-Avon.

Chaucer was in early life a soldier, and afterwards an effective Commissioner of Customs, and Inspector of Woods and Crown Lands. Spencer was Secretary to the Lord Deputy of Ireland, was afterwards Sheriff of Cork, and is said to have been shrewd and attentive in matters of business. Milton, originally a schoolmaster, was elevated to the post of Secretary to the Council of State during the Commonwealth; and the extant Order-book of the Council, as well as many of Milton's letters which are preserved, give abundant evidence of his activity and usefulness in that office. Sir Isaac