Give Up Halfway; Fall By The Way

半途而废 (bàn tú ér fèi)

半: Half
途: Way
而: However, while
废: Give up

Literal translation: Give up when you finish half of your work.

It means that one is not pacient enough to finish one's work, and always leaves work unfinished.

Corresponding English idiom: Give up halfway; fall by the way.

Example sentence: You should keep on learning Chinese, never give up halfway.
(你应该坚持学汉语，绝不能半途而废.)