To celebrate the day of love, we’ve gathered a little bouquet of our favorite TED talks on the subject for you. First off, there’s the mysterious science behind the brain in love, as explained by Helen Fisher.

Still looking for love? For those of us still searching for the perfect mate, there’s Amy Webb’s How I Hacked Online Dating and Stefana Broadbent’s How the Internet Enables Intimacy.

 For those of us who are happily in love, there’s Esther Perel’s Secret to Desire in a Long Term Relationship and Jenna McCarthy’s What You Don’t Know About Marriage.

Want more? You can check out TED ’s special page on Love here.