The quotes in the bookmarks do not necessarily need punctuation marks

Punctuation marks were not used in ancient Chinese articles and poems. Punctuation marks were later introduced from foreign countries.

Such as the famous saying:

There is a road to the mountain of books, and hard work is the path to the endless sea of ??learning

For Chinese people, they can understand the meaning without punctuation. Many modern people Calligraphy works also follow ancient precepts and do not use punctuation.