通过 but 连接两个对比的分句，形成了鲜明的对比论证。
Even the sweetest sugar has its bitter moments.
To see a whole world in a grain of sand, and a heaven in a wildflower.
Life may be etched with pain, but a happy person is not swayed by suffering, and a blessed soul is not entangled by sorrow.
What is the most important thing in life? When someone does a good deed, others might consider whether it is worth it or if there will be a return, but the joy of fulfilling one's heart is something others can never truly experience. In all the affairs of life, nothing is more important than achieving one's heart's desire.
At an age when time is still on our side, we should be clearer than anyone: A meaningful life is often lived for others, but a life of interest is lived for oneself.
即使是最甜的糖，也有苦涩的时刻。
从一粒沙中窥见一个世界，从一朵野花中遇见一片天堂。
人生虽写满伤痛，但快乐的人不为痛苦所左右，幸福的人不被忧愁所纠缠。
人生中什么最重要？当一个人行善时，旁人或许会衡量得失、计算回报，但那份内心深处的喜悦，旁人是无法体会的。在人生的种种追求中，没有什么比达成心愿更重要。
在尚有时间的年纪，应当比任何人都清楚：有意义的人生往往是活给别人看的，而有意思的生活才是活给自己的。