退 [--------]

Jyutping hok6 jyu4 jik6 seoi2 hang4 zau1 , bat1 zeon3 zak1 teoi3
Pinyin xué rú nì shuǐ xíng zhōu , bù jìn zé tuì

Definitions (Wiktionary)
  1. proverb
    Learning is like making the boat go against the current; if you stop moving forward, you will go back.

退 [--------]

Jyutping hok6 jyu4 jik6 seoi2 hang4 zau1 , bat1 zeon3 zak1 teoi3
Pinyin xué rú nì shuǐ xíng zhōu , bù jìn zé tuì

Definitions (CC-CEDICT)
  1. study is like rowing upstream – if you don't keep pushing forward, you fall behind