“Every man ought to have the fullest opportunity of establishing his innocence if he can.”

Pt. II, Ch. 4 : Derivation of a First Principle, § 3
Social Statics (1851)

1860s, Speech to Germans at Cincinnati, Ohio (1861), Gazette version

"The Century's Great Men in Science" in The 19th Century : A Review of Progress During the Past One Hundred Years in the Chief Departments of Human Activity (1901), published by G. P. Putnam's Sons.
Context: It is the man of science, eager to have his every opinion regenerated, his every idea rationalized, by drinking at the fountain of fact, and devoting all the energies of his life to the cult of truth, not as he understands it, but as he does not yet understand it, that ought properly to be called a philosopher. To an earlier age knowledge was power — merely that and nothing more; to us it is life and the summum bonum. Emancipation from the bonds of self, of one's own prepossessions, importunately sought at the hands of that rational power before which all must ultimately bow, — this is the characteristic that distinguishes all the great figures of nineteenth-century science from those of former periods.

Book IV, Ch. 31: The Promise of America
You Can't Go Home Again (1940)

On Crimes and Punishments (1764)

Source: Life, the Truth, and Being Free (2010), p. 28
Context: Although time seems to fly by, it never travels faster than one day at a time. Each day is a new opportunity to live your life to the fullest.

Item 194.1
Proposals for a New Law Code (1768)

Source: Epistulae Morales ad Lucilium (Moral Letters to Lucilius), Letter LXX: On the proper time to slip the cable, Line 4.