“Let go of a small part of your righteousness and in a few days you will be at peace.”

95
Golden Sayings of Epictetus

America and the World War (1915)
1910s

Source: Bangkok Tattoo

The last sentence of this quote is incised in marble on the wall of the United States House of Representatives chamber, directly behind the Speaker's chair (with the word "develop" spelled with a final "e").
Address on Laying the Cornerstone of the Bunker Hill Monument (1825)
Context: Our proper business is improvement. Let our age be the age of improvement. In a day of peace, let us advance the arts of peace and the works of peace. Let us develop the resources of our land, call forth its powers, build up its institutions, promote all its great interests, and see whether we also, in our day and generation, may not perform something worthy to be remembered.

Source: Spirit Bound

1963, Ich bin ein Berliner
Context: What is true of this city is true of Germany — real, lasting peace in Europe can never be assured as long as one German out of four is denied the elementary right of free men, and that is to make a free choice. In 18 years of peace and good faith, this generation of Germans has earned the right to be free, including the right to unite their families and their nation in lasting peace, with good will to all people. You live in a defended island of freedom, but your life is part of the main. So let me ask you as I close, to lift your eyes beyond the dangers of today, to the hopes of tomorrow, beyond the freedom merely of this city of Berlin, or your country of Germany, to the advance of freedom everywhere, beyond the wall to the day of peace with justice, beyond yourselves and ourselves to all mankind.

Attributed to Epicurus by Clement of Alexandria in Stromata

Entering Your Destiny (2020)