others, I dare not warrant, but I will do my best to use my author well, and to take circumstances into account, never, if I can help it, to offer anything that has not all the foundations that I promised before, namely, _nature_ to lead it, _reason_ to back it, _custom_ to commend it, _experience_ to approve it, and _profit_ to prefer it. I think a student ought rather to invest himself in the habit of his writer than to stand much upon his title and authority in proof or disproof, as it is well understood that all our studies are indebted to the original devisers and the most eloquent writers. Therefore, to avoid undue length, I will neither give authorities nor examples, as it is not a question of a man’s name, but of the real value of the argument. I shall not busy myself with citing authors, either to show what I have read or how far I am in agreement with others. It is not needful to heap up witnesses where nothing is doubtful; the natural use of testimony is to prove where there is doubt, not to cloy where all is clear. In such cases, for want of sound judgment, a catalogue of names and a multitude of sentences, which only say what no one denies, are forced on to the stage to seem to arm the quoter, who is fighting without a foe, and flying when there is no cause for fear. In points of learning which are beyond controversy, I appeal to the judgment of those who have gone over the same ground, and can test the truth of what I say without being told the name of the author, whom they will admit to have been well cited when they find me saying as he saith, whether it be through recollection of what I have read or from coincidence of judgment where I have not read. I do honour good writers, but without superstition, being in no way addicted to titles. But seeing that Reason doth honour them, they must be content to remain outside themselves, and use every means to bring her forward, as their lady and mistress, whose authority and credit procure them admission when they come from her. It is not so because a writer said so, but because the truth is so, and he said the truth. Indeed, the truth is often weakened in the hearer’s opinion, though not in itself, by naming the writer. If truth did depend upon the person, she would often be brought into a miserable plight, being constrained to serve fancy and alter at will, whereas she should bend to no one, however opinionative people may persuade themselves. This is known to the learned and wise, whose courtesy I crave. As for the unlearned, I must entreat them, for their sakes if not for mine, not to debate with me on points where they cannot judge. In matters that are intelligible to both, I must pray them to weigh my words well, and ever to give me credit for good intentions. The Ideal and the Possible.