A quotation is a copy of the words of another, with acknowledgment of the source. Daily and Random Quotes sites email a quotation to users on a regular schedule, or display a new quote or set of quotes each time the user visits the site.
If you do not include sources for your quotations, the Reference sub-categories are not right for your site. You might consider submitting it to one of the Society:People:Personal Pages categories.
If your site is primarily a sales promotion, please submit it to the appropriate Shopping category.
If the daily quotations you provide are limited to a particular subject, you might consider submitting your site to one of the subject-specific Reference:Quotation sub-categories. For instance, a site that sends out a daily inspirational quote might prefer to be listed in the Reference:Quotations:Inspirational sub-category.