Look back now, for a moment, on your own brief experience of life; and although you lived it feelingly in your own person, and had every step of conduct burned in by pains and joys upon your memory, tell me what definite lesson does experience hand on from youth to manhood, or from both to age? The settled tenor which first strikes the eye is but the shadow of a delusion. This is gone; that never truly was; and you yourself are altered beyond recognition. Times and men and circumstances change about your changing character, with a speed of which no earthly hurricane affords an image. What was the best yesterday, is it still the best in this changed theatre of a to-morrow? Will your own Past truly guide you in your own violent and unexpected Future? And if this be questionable, with what humble, with what hopeless eyes, should we not watch other men driving beside us on their unknown careers, seeing with unlike eyes, impelled by different gales, doing and suffering in another sphere of things? And as the authentic clue to such a labyrinth and change of scene, do you offer me these two score words? these five bald prohibitions? For the moral precepts are no more than five; the first four deal rather with matters of observance than of conduct; the tenth, _Thou shalt not covet_, stands upon another basis, and shall be spoken of ere long. The Jews, to whom they were first given, in the course of years began to find these precepts insufficient; and made an addition of no less than six hundred and fifty others! They hoped to make a pocket-book of reference on morals, which should stand to life in some such relation, say, as Hoyle stands in to the scientific game of whist. The comparison is just, and condemns the design; for those who play by rule will never be more than tolerable players; and you and I would like to play our game in life to the noblest and the most divine advantage. Yet if the Jews took a petty and huckstering view of conduct, what view do we take ourselves, who callously leave youth to go forth into the enchanted forest, full of spells and dire chimeras, with no guidance more complete than is afforded by these five precepts? _Honour thy father and thy mother_. Yes, but does that mean to obey? and if so, how long and how far? _Thou shall not kill_. Yet the very intention and purport of the prohibition may be best fulfilled by killing. _Thou shall not commit adultery_. But some of the ugliest adulteries are committed in the bed of marriage and under the sanction of religion and law. _Thou shalt not bear false witness_. How? by speech or by silence also? or even by a smile? _Thou shalt not steal_. Ah, that indeed! But what is _to steal_?