"Many things are unknown to the wisest, and the best men can never wholly divest themselves of passions and affections... nothing can or ought to be permanent but that which is perfect"
About this Quote
The second clause sharpens the blade. Even “the best men” cannot “wholly divest themselves of passions and affections.” Sydney isn’t moralizing about emotion; he’s pointing to structural bias. Affections pull on judgment: loyalty, ambition, resentment, favoritism. By acknowledging that virtue doesn’t cancel appetite, he undercuts the royalist claim that a “good” ruler makes absolute authority safe. Character is not a substitute for constraints.
Then comes the quiet radicalism: “nothing can or ought to be permanent but that which is perfect.” Permanence is treated as a privilege, not a default. Institutions, laws, and regimes should be revisable precisely because they’re made by fallible people operating with partial knowledge and private motives. The word “ought” matters: this isn’t merely how history works; it’s a normative demand for political flexibility - a justification for constitutional limits, accountability, and even resistance when power hardens into heredity or dogma.
Sydney’s subtext is republican and anti-absolutist: if humans can’t be perfected, neither can their rulers. The safest politics is the one designed to survive our best intentions.
Quote Details
| Topic | Wisdom |
|---|---|
| Source | Algernon Sidney, Discourses Concerning Government (posthumous, 1698). Passage appears in Sidney's Discourses; exact pagination varies by edition. |
| Cite |
Citation Formats
APA Style (7th ed.)
Sydney, Algernon. (2026, January 18). Many things are unknown to the wisest, and the best men can never wholly divest themselves of passions and affections... nothing can or ought to be permanent but that which is perfect. FixQuotes. https://fixquotes.com/quotes/many-things-are-unknown-to-the-wisest-and-the-15714/
Chicago Style
Sydney, Algernon. "Many things are unknown to the wisest, and the best men can never wholly divest themselves of passions and affections... nothing can or ought to be permanent but that which is perfect." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/many-things-are-unknown-to-the-wisest-and-the-15714/.
MLA Style (9th ed.)
"Many things are unknown to the wisest, and the best men can never wholly divest themselves of passions and affections... nothing can or ought to be permanent but that which is perfect." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/many-things-are-unknown-to-the-wisest-and-the-15714/. Accessed 10 Feb. 2026.










