“And we cannot change this order of things; but what we can do is to acquire stout hearts, worthy of good men, thereby courageously enduring chance and placing ourselves in harmony with Nature.”
Epistulae Morales ad Lucilium (Moral Letters to Lucilius), Letter CVII: On Obedience to the Universal Will
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Seneca the Younger 225
Roman Stoic philosopher, statesman, and dramatist -4–65 BCRelated quotes

Letter to Dorothy Day, quoted in Catholic Voices in a World on Fire (2005) by Stephen Hand, p. 180.
Context: Our job is to love others without stopping to inquire whether or not they are worthy. That is not our business and, in fact, it is nobody's business. What we are asked to do is to love, and this love itself will render both ourselves and our neighbors worthy if anything can.

“And we, with Nature’s heart in tune,
Concerted harmonies.”
Jeannie Morrison (c. 1832), Stanza 8.

Source: Nature of Man and His Government (1959), p. 81

Source: 1930s- 1950s, Landmarks of Tomorrow: A Report on the New 'Post-Modern' World (1959), p. 22

2011, Tucson Memorial Address (January 2011)
Context: If there are rain puddles in heaven, Christina is jumping in them today. And here on Earth, we place our hands over our hearts, and commit ourselves as Americans to forging a country that is forever worthy of her gentle, happy spirit.