“If "rights" exist at all—and both feeling and usage indubitably prove that they do exist—they cannot be consistently awarded to men and denied to animals, since the same sense of justice and compassion apply in both cases.”

Source: Foods, Ch. XIX, p. 143

Book I, ch. 7 http://avalon.law.yale.edu/18th_century/blackstone_bk1ch7.asp: Of the King's Prerogative.
Commentaries on the Laws of England (1765–1769)
Context: In this distinct and separate existence of the judicial power, in a peculiar body of men, nominated indeed, but not removable at pleasure, by the crown, consists one main preservative of the public liberty; which cannot subsist long in any state, unless the administration of common justice be in some degree separated both from the legislative and the also from the executive power. Were it joined with the legislative, the life, liberty, and property of the subject would be in the hands of arbitrary judges, whose decisions would be then regulated only by their own opinions, and not by any fundamental principles of law; which, though legislators may depart from, yet judges are bound to observe. Were it joined with the executive, this union might soon be an overbalance for the legislative. For which reason... effectual care is taken to remove all judicial power out of the hands of the king's privy council; who, as then was evident from recent instances might soon be inclined to pronounce that for law, which was most agreeable to the prince or his officers. Nothing therefore is to be more avoided, in a free constitution, than uniting the provinces of a judge and a minister of state.

Part III, Ch. VIII, 7, p. 223 https://archive.org/stream/basisofmorality00schoiala#page/223/mode/2up
On the Basis of Morality (1840)
Source: The Basis of Morality

Federalist No. 51 (6 February 1788)
1780s, Federalist Papers (1787–1788)

The Principles of Success in Literature (1865)
Context: I would not have the reader conclude that because I advocate plain-speaking even of unpopular views, I mean to imply that originality and sincerity are always in opposition to public opinion. There are many points both of doctrine and feeling in which the world is not likely to be wrong. But in all cases it is desirable that men should not pretend to believe opinions which they really reject, or express emotions they do not feel. And this rule is universal. Even truthful and modest men will sometimes violate the rule under the mistaken idea of being eloquent by means of the diction of eloquence. This is a source of bad Literature.

"Reflections on Gandhi" (1949)
Context: Saints should always be judged guilty until they are proved innocent, but the tests that have to be applied to them are not, of course, the same in all cases. In Gandhi's case the questions one feels inclined to ask are: to what extent was Gandhi moved by vanity — by the consciousness of himself as a humble, naked old man, sitting on a praying mat and shaking empires by sheer spiritual power — and to what extent did he compromise his own principles by entering politics, which of their nature are inseparable from coercion and fraud? To give a definite answer one would have to study Gandhi's acts and writings in immense detail, for his whole life was a sort of pilgrimage in which every act was significant.

Writing and Being (1991)

What Does 'Death to Israel' Mean to You? (2011)