Polyhymnia (1590), reported in Bartlett's Familiar Quotations, 10th ed. (1919).
“How soon hath Time, the subtle thief of youth,
Stol'n on his wing my three-and-twentieth year!”
On His Having Arrived at the Age of Twenty-three (1631)
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John Milton 190
English epic poet 1608–1674Related quotes

An Historical Account of Two Notable Corruptions of Scripture (1704), regarding his calculations "Of the End of the World" based upon the prophecies of Daniel, quoted in Look at the Moon! the Revelation Chronology (2007) by John A. Abrams, p. 141
Modern typographical and spelling variant:
This I mention not to assert when the time of the end shall be, but to put a stop to the rash conjectures of fanciful men who are frequently predicting the time of the end, and by doing so bring the sacred prophesies into discredit as often as their predictions fail.
As quoted in "The world will end in 2060, according to Newton" in the London Evening Standard (19 June 2007) http://www.thisislondon.co.uk/news/article-23401099-the-world-will-end-in-2060-according-to-newton.do
Context: The 2300 years do not end before the year 2132 nor after 2370.
The time times & half time do not end before 2060..... It may end later, but I see no reason for its ending sooner. This I mention not to assert when the time of the end shall be, but to put a stop to the rash conjectures of fancifull men who are frequently predicting the time of the end, & by doing so bring the sacred prophesies into discredit as often as their predictions fail. Christ comes as a thief in the night, & it is not for us to know the times & seasons which God hath put into his own breast.

Ode to Memory (1830)
Context: Whither in after life retired
From brawling storms,
From weary wind,
With youthful fancy reinspired,
We may hold converse with all forms
Of the many-sided mind,
And those whom passion hath not blinded,
Subtle-thoughted, myriad-minded.

“In my days of youth, I remembered my God,
And he hath not forgotten my age.”
The Old Man's Comforts and How He Gained Them, st. 6.

Forty, l. 29-32.
Ballads for the Times (1851)

[The Real Face of Atheism, 2004, 9780801065118, 3293056M, http://books.google.com/books?id=0SD0mYaYz3sC&pg=PA25&dq=%22in+his+book+Modern+Times%22, 25]
2000s

“The youth of America is their oldest tradition. It has been going on now for three hundred years.”
Lord Illingworth, Act I
A Woman of No Importance (1893)