过而能改,善莫大焉

guò ér néng gǎi , shàn mò dà yān

If one can change after making a mistake, there is nothing better (idiom)

guò

to cross

ér

and

néng

can

gǎi

to change

,

shàn

good (virtuous)

do not

big; large; great

yān

where