“Happy is the man who has broken the chains which hurt the mind, and has given up worrying once and for all.”
"Be patient and tough; one day this pain will be useful to you.”
Source: Metamorphoses
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Ovid 120
Roman poet -43–17 BCRelated quotes

“Be patient and tough; someday this pain will be useful to you.”
Perfer et obdura, dolor hic tibi proderit olim.

“Which is the greater wrong? To hurt the unforgiving one, or hurt the one who has forgiven all?”
Homecoming saga, Earthborn (1995)
“Nature has given the opportunity of happiness to all, knew they but how to use it.”
Natura beatis,<br/>omnibus esse dedit, si quis cognoverit uti.
Natura beatis,
omnibus esse dedit, si quis cognoverit uti.
In Rufinum, Bk. I, lines 215-216 http://penelope.uchicago.edu/Thayer/L/Roman/Texts/Claudian/In_Rufinum/1*.html#215.

“The woman who survives intact and happy must be at once tender and tough.”