Mr Cai Yuanpei has a couplet, and the next sentence is: Lan Zhi and the smell are more fragrant and clearer. I can't remember the first part, please help me answer it. Thank you!

The website I found:

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Simplified Chinese characters: Today is pure and refined, while the legacy of Lan Zhi and Yuan is as fragrant.

Traditional Chinese characters: enlarge and paste the original version of the above two words. I really don't know them. It depends on who you know.