Cháng pān gāoshān, tuǐ bù ruǎn; cháng guò xiāntán, bù pà jiāo.

常攀高山腿不軟, 常過險灘不怕礁。

Lit [If one] often climbs high mountains, [one's] legs will not be weak; [if one] often passes over dangerous shoals, one won't be afraid of reefs.

Fig One who has gone through hardships has developed fortitude and won't easily yield to difficulties.

Topics FORTITUDE HARDSHIPS