“Had previous chroniclers neglected to speak in praise of History in general, it might perhaps have been necessary for me to recommend everyone to choose for study and welcome such treatises as the present, since men have no more ready corrective of conduct than knowledge of the past.”
The Histories
Context: Had previous chroniclers neglected to speak in praise of History in general, it might perhaps have been necessary for me to recommend everyone to choose for study and welcome such treatises as the present, since men have no more ready corrective of conduct than knowledge of the past. But all historians, one may say without exception, and in no half-hearted manner, but making this the beginning and end of their labour, have impressed on us that the soundest education and training for a life of active politics is the study of History, and that surest and indeed the only method of learning how to bear bravely the vicissitudes of fortune, is to recall the calamities of others. Evidently therefore no one, and least of all myself, would think it his duty at this day to repeat what has been so well and so often said. For the very element of unexpectedness in the events I have chosen as my theme will be sufficient to challenge and incite everyone, young and old alike, to peruse my systematic history. For who is so worthless or indolent as not to wish to know by what means and under what system of polity the Romans in less than fifty-three years have succeeded in subjecting nearly the whole inhabited world to their sole government — a thing unique in history? Or who again is there so passionately devoted to other spectacles or studies as to regard anything as of greater moment than the acquisition of this knowledge?
Help us to complete the source, original and additional information
Polybius 15
ancient Greek historian -208–-126 BCRelated quotes

Letter to Giovanni Boccaccio (28 April 1373) as quoted in Petrarch : The First Modern Scholar and Man of Letters (1898) edited by James Harvey Robinson and Henry Winchester Rolfe, p. 417
Context: I certainly will not reject the praise you bestow upon me for having stimulated in many instances, not only in Italy but perhaps beyond its confines also, the pursuit of studies such as ours, which have suffered neglect for so many centuries; I am, indeed, almost the oldest of those among us who are engaged in the cultivation of these subjects. But I cannot accept the conclusion you draw from this, namely, that I should give place to younger minds, and, interrupting the plan of work on which I am engaged, give others an opportunity to write something, if they will, and not seem longer to desire to reserve everything for my own pen. How radically do our opinions differ, although, at bottom, our object is the same! I seem to you to have written everything, or at least a great deal, while to myself I appear to have produced almost nothing.

Source: Reading Architectural History (2002), Ch. 1 : Reading the past : What is architectural history?

“The present enshrines the past—and in the past all history has been made by men.”
Introduction : Woman as Other http://books.google.com/books?id=kUW0AAAAIAAJ&q=%22The+present+enshrines+the+past+and+in+the+past+all+history+has+been+made+by+men%22&pg=PA122#v=onepage
The Second Sex (1949)

Napoleon : In His Own Words (1916)

Source: 1850s, A treatise on differential equations (1859), p. v; Lead paragraph of the preface

Theodore Roosevelt's introduction to "The Writings and Papers And Writings Of Abraham Lincoln, Volume One, Constitutional Edition" http://www.gutenberg.org/dirs/3/2/5/3253/3253-h/files/2653/2653-h/2653-h.htm#2H_4_0002, edited by Arthur Brooks Lapsley and released as "The Project Gutenberg EBook of The Papers And Writings Of Abraham Lincoln, Volume One, by Abraham Lincoln" by Project Gutenberg on July 4, 2009. Roosevelt wrote his introduction at Sagamore Hill, Oyster Bay, New York, September 22, 1905 according to the introduction.
1900s
Context: It is a very poor thing, whether for nations or individuals, to advance the history of great deeds done in the past as an excuse for doing poorly in the present; but it is an excellent thing to study the history of the great deeds of the past, and of the great men who did them, with an earnest desire to profit thereby so as to render better service in the present. In their essentials, the men of the present day are much like the men of the past, and the live issues of the present can be faced to better advantage by men who have in good faith studied how the leaders of the nation faced the dead issues of the past. Such a study of Lincoln's life will enable us to avoid the twin gulfs of immorality and inefficiency—the gulfs which always lie one on each side of the careers alike of man and of nation. It helps nothing to have avoided one if shipwreck is encountered in the other. The fanatic, the well-meaning moralist of unbalanced mind, the parlor critic who condemns others but has no power himself to do good and but little power to do ill—all these were as alien to Lincoln as the vicious and unpatriotic themselves. His life teaches our people that they must act with wisdom, because otherwise adherence to right will be mere sound and fury without substance; and that they must also act high-mindedly, or else what seems to be wisdom will in the end turn out to be the most destructive kind of folly.

The Philosophy of History (1852), Lecture I.

Vol. I: Arithmetical Algebra Preface, p. iii
A Treatise on Algebra (1842)