使用了but连接两个转折关系的分句，形成痛苦与甜美的对比。
Put in hard work. Three words: to exert, to suffer, and to achieve. One must lift one's spirits and exert hard work. — Mao Zedong
The road to art is full of thorns, which is a good thing. Most people shrink back in fear, and only the strong-willed are exceptions. — Victor Hugo
Fatalism is an excuse for the weak who lack willpower. — Romain Rolland
Steadfastness is precious; why wake at midnight and sleep at dawn? The most detrimental thing is to be exposed one day and chilled the next. — Mao Zedong
The granite that obstructs the weak will become a stepping stone for the strong. — Thomas Carlyle
Perseverance is the measure of determination. — Mutheney
Endurance may be painful, but its fruit is the sweetest. — Saadi
One must have perseverance, otherwise one will achieve nothing. — Marie Curie
Even if there are ninety-nine difficulties, they are not difficult as long as one has a strong will. — Yang Genshi
Where are the thorns that cannot be cut? Where are the tigers that cannot be slain? Where are the mountains that cannot be overturned? You only need to struggle, struggle bravely, persist, and persist forever; victory will be yours. — Deng Zhongxia
下苦功，三个字，一个叫下，一个叫苦，一个叫功，一定要振作精神，下苦功。—毛泽东
艺术的大道上荆棘丛生，这也是好事，常人都望而怯步，只有意志坚强的人例外。—雨果
宿命论是那些缺乏意志力的弱者的借口。—罗曼·罗兰
贵有恒，何必三更起五更眠。最无益，只怕一日曝十日寒。—毛泽东
阻碍弱者前进路上的花岗石，会成为强者前进路上的垫脚石。—卡莱尔
人们的毅力是衡量决心的尺度。—穆泰奈比
忍耐虽然痛苦，果实却最香甜。—萨迪
人要有毅力，否则将一事无成。—居里夫人
就是有九十九个困难，只要有一个坚强的意志就不困难。—杨根思
哪有斩不断的荆棘？哪有打不死的豺虎？哪有推不翻的山岳？你只须奋斗着，猛勇地奋斗着；持续着，永远的持续着，胜利就是你的了。—邓中夏
"Deeply moved, Zhang Yi endured many hardships and finally reached Qin to meet King Hui."
"Successful people do a little more and persist to the end."
"He did not give up but kept trying to improve."
"Persistence is crucial on the path to success."
"Dripping water wears away stone because it continuously hits the same spot."