What are the short sentences mentioned briefly?

1, the calm lake surface stirred up waves, and my mood was as jubilant as waves.

2. I am very happy. I met a math problem. Through my unremitting efforts and the spirit of seeking knowledge, I finally found the correct answer on the Internet.

Happiness is like a glass of water, so simple that it can be seen everywhere around us, but sometimes we often ignore it.

4. If you just want to pursue personal happiness, this wish is easy to realize; But if we want to be happier than others, it will be too difficult, because we always think that others are happier than us.

My brother was ecstatic, holding this notice soaked in sweat and laughing heartily.

6. The best feeling is probably that I opened your dialog box, started to want to chat with you, and suddenly received your message.