EPILOGUE 459 history.' We have proceeded on the assumption of Samuel Butler that' Life is the art of drawing sufficient conclusions from insufficient premises': it cannot be otherwise. "The best thing which we derive from history,' Goethe said,' is the enthusiasm it raises in us.' Dr. Johnson found its justifica- tion in the argument that: ' The present state of tilings is the consequence of the past; and it is natural to enquire as to the sources of the good we enjoy or the evils we suffer. If we act only for ourselves, to neglect the study of history is not prudent; if intrusted with the care of others, it is not just.' With all our omissions which, though inevitable, have been many and large, we have written with the motto so well formulated by Napoleon that 'An historian ought to be exact, sincere, and impartial; free from passion, unbiased by interest, fear, resentment, or affection; and faithful to the truth, which is the mother of history, the preserver of great actions, the enemy of oblivion, the witness of the past, the direction of the future.' ' Life,' as Wordsworth wrote,' is divided into three terms: that which was, which is, and which will be. Let us learn from the past to profit by the present, and from the present to live better for the future.'