万丈高楼平地起

Traditional (Taiwan): 萬丈高樓平地起

wànzhànggāolóupíngdìqǐ ㄨㄢˋ ㄓㄤˋ ㄍㄠ ㄌㄡˊ ㄆㄧㄥˊ ㄉㄧˋ ㄑㄧˇ

    • towering buildings are built up from the ground (idiom)
    • great oaks from little acorns grow

Character by character

Saying俗语俗語

Proverb谚语諺語 · In everyday use

Literally
a skyscraper rises from level ground
Meaning
Every great undertaking must start with a solid foundation. Compare "Rome wasn't built in a day".

Sources