you're never too old to learn (it is possible to learn new things at any age)

apple does not fall far from the tree (a child is similar to its parents)

the pleasure is all mine (a polite reaction to receiving thanks)

third time's a charm (one is sure to succeed on the third try)

laughter is the best medicine

patience is a virtue

the sky is the limit

all good things come to an end

(idiomatic) said to express annoyance at something that another person said

(Brazil, idiomatic, slang, intransitive) to be mistaken, to be confused