“Man, no doubt, owes many other moral duties to his fellow men; such as to feed the hungry, clothe the naked, shelter the homeless, care for the sick, protect the defenceless, assist the weak, and enlighten the ignorant. But these are simply moral duties, of which each man must be his own judge, in each particular case, as to whether, and how, and how far, he can, or will, perform them. But of his legal duty—that is, of his duty to live honestly towards his fellow men—his fellow men not only may judge, but, for their own protection, must judge. And, if need be, they may rightfully compel him to perform it. They may do this, acting singly, or in concert. They may do it on the instant, as the necessity arises, or deliberately and systematically, if they prefer to do so, and the exigency will admit of it.”

Jones v. Merionethshire Permanent Benefit Building Society (1891), L. R. 1 C. D. [1892], p. 183.

Recapitulation
1790s, The Age of Reason, Part I (1794)

"Society and Civilization" in the American Review (July 1845)
Context: The duties of man consist in alternate action and meditation, mutually aiding and relieving each other; and both, directed with undeviating aim, to the progressive improvement of himself and his fellow creatures. Heaven has given him in charge, to promote the happiness and well-being of himself, his wife, his children, his kindred, his neighbors, his fellow citizens, his country, and his kind; and the great problem of legislation is, so to organize the civil government of a community, that this gradation of duties, may be made to harmonize in all its parts — that in the operation of human institutions upon social action, self-love and social may be made the same.

Epistulae Morales ad Lucilium (Moral Letters to Lucilius), Letter XLVII: On master and slave

Source: The Bhagavadgītā (1973), p. 209. (47.)

Source: The Liberty of Man, Woman and Child (1877)
Context: Only a few years ago there was a great awakening of the human mind. Men began to inquire by what right a crowned robber made them work for him? The man who asked this question was called a traitor. Others asked by what right does a robed hypocrite rule my thought? Such men were called infidels. The priest said, and the king said, where is this spirit of investigation to stop? They said then and they say now, that it is dangerous for man to be free. I deny it. Out on the intellectual sea there is room enough for every sail. In the intellectual air there is space enough for every wing.
The man who does not do his own thinking is a slave, and is a traitor to himself and to his fellow-men.

Toils And Pleasures.
The Silverado Squatters (1883)

Source: Civilization and Its Discontents

"Einstein's Reply to Criticisms" (1949), The World As I See It (1949)
Context: A man's value to the community depends primarily on how far his feelings, thoughts, and actions are directed towards promoting the good of his fellows. We call him good or bad according to how he stands in this matter. It looks at first sight as if our estimate of a man depended entirely on his social qualities.
And yet such an attitude would be wrong. It is clear that all the valuable things, material, spiritual, and moral, which we receive from society can be traced back through countless generations to certain creative individuals. The use of fire, the cultivation of edible plants, the steam engine — each was discovered by one man.
Only the individual can think, and thereby create new values for society — nay, even set up new moral standards to which the life of the community conforms. Without creative, independently thinking and judging personalities the upward development of society is as unthinkable as the development of the individual personality without the nourishing soil of the community.
The health of society thus depends quite as much on the independence of the individuals composing it as on their close political cohesion.