“I just do the best I can under the circumstances.”

Source: This is Where I Leave You

Money, Compliments, Publicity (Song Number 10).
The Excitement Plan (2009)

As quoted in Ibrahim Al-Marashi and Sammy Salama (2008), Iraq's Armed Forces: An Analytical History.

Paris Review Interview (1990)
Context: I know when it’s the best I can do. It may not be the best there is. Another writer may do it much better. But I know when it’s the best I can do. I know that one of the great arts that the writer develops is the art of saying, No. No, I’m finished. Bye. And leaving it alone. I will not write it into the ground. I will not write the life out of it. I won’t do that.

Feb 2010, http://www.thisisnottinghamforest.co.uk/news/Forest-boss-Davies-stand-record/article-1832938-detail/article.html
A response to Forest supporters who booed when he made a substitution at Doncaster Rovers

The Four Agreements (1997)

The Eighteenth Brumaire of Louis Bonaparte (1852)
Context: Men make their own history, but they do not make it as they please; they do not make it under self-selected circumstances, but under circumstances existing already, given and transmitted from the past. The tradition of all dead generations weighs like a nightmare on the brains of the living. And just as they seem to be occupied with revolutionizing themselves and things, creating something that did not exist before, precisely in such epochs of revolutionary crisis they anxiously conjure up the spirits of the past to their service, borrowing from them names, battle slogans, and costumes in order to present this new scene in world history in time-honored disguise and borrowed language. Thus Luther put on the mask of the Apostle Paul, the Revolution of 1789-1814 draped itself alternately in the guise of the Roman Republic and the Roman Empire, and the Revolution of 1848 knew nothing better to do than to parody, now 1789, now the revolutionary tradition of 1793-95. In like manner, the beginner who has learned a new language always translates it back into his mother tongue, but he assimilates the spirit of the new language and expresses himself freely in it only when he moves in it without recalling the old and when he forgets his native tongue.
When we think about this conjuring up of the dead of world history, a salient difference reveals itself. Camille Desmoulins, Danton, Robespierre, St. Just, Napoleon, the heroes as well as the parties and the masses of the old French Revolution, performed the task of their time – that of unchaining and establishing modern bourgeois society – in Roman costumes and with Roman phrases.