《怦然心动》中的一些经典台词包括：

1. "Some of us get dipped in flat, some in satin, some in gloss. But every once in a while you find someone who's iridescent, and when you do, nothing will ever compare."

2. "但愿陪在你身边的人是我。"

3. "我们生命中会遇到很多人，有的黯淡无光，有的色彩艳丽，有的光彩照人｡但是偶尔，你也会遇到一个彩虹般绚丽的人｡当你真的遇到，其他人就此变成匆匆浮云。"

4. "一幅画不是由部分简单拼凑而成的｡牛仅仅只是一头牛，草地也只有青草和鲜花，而穿过树枝的阳光也仅仅只是一束光，但如果将它们放到一起，就会产生魔法一般的魅力。"

5. "我想在你的青春里， 写下我的名字。"

6. "有人住高楼，有人在深沟，有人光万丈，有人一身锈，世人万千种，浮云莫去求，斯人若彩虹，遇上方知有。"

7. "Sometimes a little discomfort in the beginning can save a whole lot of pain down the road. 有时起初的隐忍可以避免一路的疼痛。"

8. "The way she talked about what it felt like to be up in that tree to be he ld above the earth, brushed by the wind. Who in junior high talks like that？ This weird feeling started taking over in the pit of my stomach and I didn’t like it."

9. "The higher I got, the more amazed I was by the view. 眼前的风景便愈发迷人。"

这些台词不仅反映了电影中角色的情感和成长，也以其深刻的哲理和美丽的语言打动了观众的心。