When the measure was revived by the Elizabethans two conflicting tendencies began to appear in its treatment. One was to end each line with a full and strong rime-syllable, noun or verb or emphatic adjective, and to let each couplet consist of a single sentence, or at any rate a single clause of a sentence, so as to be both grammatically and rhythmically almost independent of the next. Under this, which is called the closed or stopped couplet system, the rime-pattern and the sense or sentence-pattern, which together compose the formal elements in all rimed verse, are made strictly to coincide, and within the limits of a couplet no full break of the sense is allowed. Rhetorical and epigrammatical point and vigour are the special virtues of this system: its weaknesses are monotony of beat and lack of freedom and variety in sentence structure. The other and opposite tendency is to suffer the sentence or period to develop itself freely, almost as in prose, running over as it will from one couplet into another, and coming to a full pause at any point in the line; and at the same time to let any syllable whatever, down to the lightest of prepositions or auxiliaries, serve at need as a rime-syllable. Under this system the sense and consequent sentence-pattern winds in and out of the rime-pattern variously and deviously, the rime-echo striking upon the ear now with emphasis, now lightly and fugitively, and being sometimes held up to follow a full pause and sometimes hurried on with the merest suggestion or insinuation of a possible pause, or with none at all. The virtues of this system are variety and freedom of movement; its special dangers are invertebrateness and a tendency to straggle and wind itself free of all real observance of rime-effect or metrical law. Most of the Elizabethans used both systems interchangeably, now a string of closed couplets, and now a flowing period carried through a succession of couplets overrunning into one another. Spenser in _Mother Hubbard's Tale_ and Marlowe in _Hero and Leander_ were among the earliest and best revivers of the measure, and both inclined to the closed couplet system, Spenser the more strictly of the two, as the satiric and epigrammatic nature of his theme might naturally dictate. Let us take a well known passage from Marlowe:-- It lies not in our power to love or hate, For will in us is over-ruled by fate. When two are stript, long ere the course begin, We wish that one should lose, the other win; And one especially do we affect Of two gold ingots, like in each respect: The reason no man knows; let it suffice, What we behold is censured by our eyes. Where both deliberate, the love is slight: Who ever loved, that loved not at first sight?