“Again and again, the altruist has arisen in politics, has bidden us share with others the product of our toil, and has proclaimed the communistic dogma as the panacea for our social ills. So today, amid the buried hopes and buried projects of the past, the doctrine of communism still lives in the minds of men. Under stress of misfortune, or in dread of tyranny, it is still preached in modern times as Plato preached it in the world of the Greeks.
Yet it is indeed doubtful whether, in the history of mankind, a doctrine was ever taught more impracticable or more false to the principles it professes than this very doctrine of communism. In a world where self-interest is avowedly the ruling motive, it seeks to establish at once an all-reaching and all-controlling altruism. In a world where every man is pushing and fighting to outstrip his fellows, it would make him toil with like vigor for their common welfare. In a world where a man's activity is measured by the nearness of reward, it would hold up a prospective recompense as an equal stimulant to labor. … In the future, when the remoteness of his reward shall have weakened the laborer's zeal, we shall be able to judge more fairly of the blessings that the communist offers.”

"Whose Future?", from the book Take My Advice : Letters to the Next Generation from People Who Know a Thing or Two (2007) by James L. Harmon

Page 141
2000s, Promises to Keep (2008)

“No Truth in Socialism: Why the ‘Crisis of Marxism’ Matters” https://www.americanthinker.com/articles/2021/08/no_truth_in_socialism_why_the_crisis_of_marxism_matters.html American Thinker (Aug. 7, 2021)

Source: Discipleship (1937), Revenge, p. 142.
Context: The passion of Christ is the victory of divine love over the powers of evil, and therefore it is the only supportable basis for Christian obedience. Once again, Jesus calls those who follow him to share his passion. How can we convince the world by our preaching of the passion when we shrink from that passion in our own lives? On the cross Jesus fulfilled the law he himself established and thus graciously keeps his disciples in the fellowship of his suffering.

Truman Library address (2006)
Context: Both security and development ultimately depend on respect for human rights and the rule of law.
— Although increasingly interdependent, our world continues to be divided — not only by economic differences, but also by religion and culture. That is not in itself a problem. Throughout history, human life has been enriched by diversity, and different communities have learnt from each other. But, if our different communities are to live together in peace we must stress also what unites us: our common humanity, and our shared belief that human dignity and rights should be protected by law.

1860s, Speech at Hartford (1860)
Context: Slavery is the great political question of the nation. Though all desire its settlement, it still remains the all-pervading question of the day. It has been so especially for the past six years. It is indeed older than the revolution, rising, subsiding, then rising again, till fifty-four, since which time it has been constantly augmenting. Those who occasioned the Lecompton imbroglio now admit that they see no end to it. It had been their cry that the vexed question was just about to be settled, 'the tail of this hideous creature is just going out of sight'. That cry is 'played out', and has ceased.

(p. 221)
Sheltering Desert; Union Deutsche Verlangsgesellschaft Ulm (1958)
Context: All power operates on a narrow basis; it rests on a few chosen faculties, and always ruthlessly exploits the weak. But history has shown again and again that the weak of the present have become the strong of the future, whereas power of today has provided the ruins of tomorrow. Who can know today that attributes and capacities will be vital in a thousand years' time? Only the preservation of all our attributes, including our weaknesses, can carry us safely through into the uncertain future. But how can it be done? Certainly not by force which does not preserve but destroys. There is only one thing which preserves all things, including the weak, and that is love.

Superman Comes to the Supermarket (1960)