“It's silly to try to escape other people's faults. They are inescapable. Just try to escape your own.”

Source: Six Cousins At Mistletoe Farm

Homily during the Holy Mass on Boston Common in Boston, Massachusetts, on 1 October 1979, during the pope's first apostolic journey to the United States
Source: Libreria Editrice Vaticana http://www.vatican.va/holy_father/john_paul_ii/homilies/1979/documents/hf_jp-ii_hom_19791001_usa-boston_en.html

Do What You Have to Do
Song lyrics, Surfacing (1997)

1920s, Process and Reality: An Essay in Cosmology (1929)
Context: In the inescapable flux, there is something that abides; in the overwhelming permanence, there is an element that escapes into flux. Permanence can be snatched only out of flux; and the passing moment can find its adequate intensity only by its submission to permanence.

Source: Ender's Game

Alaska Young, p. 19
Looking for Alaska (2005)

The Study of History (1895)
Context: Most of this, I suppose, is undisputed, and calls for no enlargement. But the weight of opinion is against me when I exhort you never to debase the moral currency or to lower the standard of rectitude, but to try others by the final maxim that governs your own lives, and to suffer no man and no cause to escape the undying penalty which history has the power to inflict on wrong. The plea in extenuation of guilt and mitigation of punishment is perpetual. At every step we are met by arguments which go to excuse, to palliate, to confound right and wrong, and reduce the just man to the level of the reprobate. The men who plot to baffle and resist us are, first of all, those who made history what it has become. They set up the principle that only a foolish Conservative judges the present time with the ideas of the past; that only a foolish Liberal judges the past with the ideas of the present.