Sonnet no 77: By William Shakespeare “Time's thievish progress to eternity”

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Thy glass will show thee how thy beauties wear,
Thy dial how thy precious minutes waste;
The vacant leaves thy mind's imprint will bear,
And of this book this learning mayst thou taste.
The wrinkles which thy glass will truly show 
Of mouthed graves will give thee memory;
Thou by thy dial's shady stealth mayst know
Time's thievish progress to eternity.
Look, what thy memory can not contain
Commit to these waste blanks, and thou shalt find 
Those children nursed, deliver'd from thy brain,
To take a new acquaintance of thy mind.
    These offices, so oft as thou wilt look,
    Shall profit thee and much enrich thy book.