What is love? Easy: if you’re Haddaway, the answer is baby don’t hurt me. And if you’re Shakespeare, it’s a smoke made with the fume of sighs. Okay...so maybe it’s not so easy after all. But it’s a question that will inevitably spill from the mouth of a curious child — particularly around Valentine’s Day. So, no matter how difficult, it’s worth trying to explain. To lend you a hand, we asked a child psychologist, a poet, and a Pulitzer Prize-nominated playwright for the best way to explain it to a child. One suggestion? “I’d say love is caring as much about someone as you do about yourself," says Adam Grant, an organizational psychologist and father of three. "It means you want the best for them and will make sacrifices for them.”