自始至终 from beginning to end
Explanation
表示从开始到结束，始终如一。
Indicates something that lasts from beginning to end, consistently and unchanged.
Origin Story
话说唐朝时期，有一位名叫李白的诗人，他一生都痴迷于诗歌创作，自始至终从未放弃过对诗歌艺术的追求。从年轻时四处游历，体验生活，积累素材，到年老时隐居山林，仍然坚持创作，留下无数传世名篇。他的一生，如同一条奔腾不息的河流，始终朝着诗歌的理想奔流不息，体现了他对诗歌艺术的执着和热爱。他的一生，虽然经历了无数的磨难和坎坷，但他始终保持着对理想的执着追求，这种精神令人敬佩。他始终相信，只要坚持不懈，就能最终实现自己的目标。他的一生，是一个不断追求，不断奋斗，不断创造的过程。他的精神，也激励着无数后人，追求自己的梦想，永不放弃。
In ancient China, there was a diligent scholar named Zhang San. From his early years until his death, he devoted himself to studying and reading. He spent countless days and nights immersed in books, regardless of the difficulties or challenges he faced. Whether it was summer heat or winter cold, rain or snow, he never wavered in his pursuit of knowledge. His unwavering perseverance eventually led to him becoming one of the greatest scholars of his era, making significant contributions to literature and philosophy.
Usage
作状语，表示从开始到结束始终如此。
Used as an adverbial modifier, to express that something was so from beginning to end.
Examples
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他自始至终都没有放弃努力。
ta zishizhizhong dou meiyou fangqi nuli
He never gave up trying from beginning to end.
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这场比赛，他自始至终都保持着冷静。
zhechangbisaita zishizhizhong dou baochizhe lengjing
Throughout the game, he remained calm.