“The years teach much which the days never know.”
Some lessons only become visible across long stretches of experience and cannot be forced into a single day of reflection.
Essay “Experience,” Essays: Second Series.
“To every thing there is a season, and a time to every purpose under the heaven.”
The verse places change inside a larger rhythm of seasons and purposes, making it useful for thinking about acceptance when one phase of life gives way to another.
Ecclesiastes 3:1 in the King James Version, opening the sequence of contrasting times and seasons.
“In a world where all is fleeting, change alone endures.”
Stability is temporary, so practical judgment requires expecting change rather than treating present arrangements as permanent.
Counsels and Maxims, T. Bailey Saunders translation, in a discussion of fortune and apparent stability.
“Knowledge comes, but wisdom lingers.”
Facts can be acquired quickly, while judgment develops more slowly through reflection and experience.
Poem “Locksley Hall”; the contrast distinguishes readily acquired knowledge from the slower development of judgment and wisdom.
“Experience is merely the name men gave to their mistakes.”
The wit turns “experience” into a retrospective label for errors, suggesting that mistakes become useful only when understood.
The Picture of Dorian Gray, 1891 edition, Chapter 4; third-person narration focalized through Lord Henry reflects that experience is the name people give to their mistakes.
“Progress, far from consisting in change, depends on retentiveness.”
Change by itself is not improvement; progress requires preserving useful lessons and achievements while moving beyond what no longer works.
The Life of Reason, Reason in Common Sense; the sentence follows Santayana’s discussion of memory and historical learning.
“Life is a succession of lessons which must be lived to be understood.”
Some understanding arrives only through experience: ideas about character, consequence, relationship, and judgment become clearer when they have been lived rather than merely described.
The Conduct of Life; the line connects knowledge of life with accumulated experience and the lessons that experience makes intelligible.
