Like most of those who study history, he learned from the mistakes of the past how to make new ones.

The careful study of history is of high value - among other reasons because it may instruct us, sometimes, concerning ways to deal our present discontents. I do not mean simply hat history repeats itself, or repeats itself with variations - although there is something in that, and particularly in the history of revolutions on the French model, which devour their own children. I am suggesting, rather, that deficiency in historical perspective leads to the ruinous blunders of of ideologues, whom Burckhardt call "the terrible simplifiers," while sound historical may diminish the force of Hegel's aphorism that "we Learn from history that we learn nothing from history."

The careful study of history is of hight value - among other reasons because it may instruct us, sometimes, concerning ways to deal with our present cisontentk. I do not mean simply that history repeats itself, or repeats itself with variation - although there is something in that, and particularly in the history of revolutions on the French model, which devour their own children. I am suggesting, rather, that deficiency in historical perspective leads to the ruinous blunders of ideologues, whom Burckhardt calls "the terrible simplifiers," while sound historical knowledge may diminish the force of Hegel's aphorism that "we learn from history that we learn nothing from history."

One of the lessons you learn from history is that history sometimes teaches the wrong lessons.

Those who ignore history’s lessons in the ultimate folly of war are forced to do more than relive them...they may be forced to die by them.

I came into the study of history through my work on a biography of Sarah and Angelina Grimké... I was fascinated with the lives and characters of these two women, who had not had a biography written about them since 1885... They spoke to me in a very personal way and I wanted to transmit what I received from these women of another century to readers of my day.

In the end, even if history has some bad pupils, it somehow teaches.

Mary had always had a taste for history, and now in the long days of captivity she seems to have given much of her time to this favourite study. The history of her own house, as well as that of the English royal family, must have had a deep and painful interest for her at a moment when she herself was threatened with a fate as tragic as any recorded in its darkest pages.

My PhD dissertation and first book were about the proslavery argument. You might say I wanted to understand inhumanity—how men and women throughout history have persuaded themselves to defend ideas, practices, societies, governments that we of a different era see as indefensible. I wanted to know how humans can become blind to evil. Perhaps if we could understand their processes of denial and rationalization we might gain insight into our own failures of vision, the shortcomings of our own time.
History, in other words, can expand our awareness of ourselves. It releases us from the confines of our own individual lives; it offers us other ways of seeing that cast our assumptions into relief. It reminds us of choices people have made—or not made—and thus illuminates realms of possibility. It shows us that things have been otherwise and reminds us they can be different once again. By documenting contingency and agency, history undermines any acceptance of crippling inevitability. And contingency means opportunity. It means that we can change things and that what we do matters. To my mind this may be history’s most important lesson.

Historia est magistra vitae. History is the teacher of life.

"Everything has happened before - not once, but over and over again. We may not be able to solve our problems through what are pompously called "the lessons of history," but at least we should be able to recognize the issues and perhaps avoid some of the solutions that have failed in the past. And we can take heart in our own dilemma by realizing that other people in other times have survived worse."

Life had taught her to be brave, to be patient, to love, to forgive.

Life as a child and then as a girl had taught her patience, hope, silence; and given her a prisoner's proficiency in handling these virtues as weapons.

Every person should take a lesson from history. We should understand that wherever there have been internal fights and conflicts in the country, the country has been weakened. Due to this, the danger from outside increases. The country has to pay a big price due to this type of weakness.