Destiny's Child: LeToya Luckett, LaTavia Robertson, Kelly Rowland and Beyonce Knowles

Destiny's Child: LeToya Luckett, LaTavia Robertson, Kelly Rowland and Beyonce Knowles on March 26, 1999. 

Jim Smeal/WireImage

Destiny's Child -- as a group and as solo artists -- have taught us a thing or two about love. The group's sophomore studio album, The Writing's on the Wall, is laced with stories on temptation and trust, or a lack thereof. Gender roles are reversed; what men can do, women can do... including "sinful" acts.

The original members -- Beyoncé, LaTavia Roberson, LeToya Luckett and Kelly Rowland -- deal directly with cheating. In fact, the album is predominantly about the cause-and-effect of cheating, nearly mapping out a revenge plot over its sixteen tracks. As well, the full-length tackles other issues, such as satisfaction and self-worth, that one can't help but relate to.

It's Destiny's Child's bestselling set, selling 6.4 million units to date in the U.S., according to Nielsen SoundScan. It debuted, and peaked, at No. 2 on the R&B/Hip-Hop Albums chart on August 14, 1999. It debuted at No. 6 on the Billboard 200 chart on the same date.

In celebration of its 15-year anniversary, here are 10 "love commandments" learned from The Writing's on the Wall.

1. Thou shalt do better without haters. Listen: "So Good."
Hard to believe these four women have haters, but with success comes jealousy.

2. Thou shalt not let a man or woman take advantage. Listen: "Bills, Bills, Bills."

(On top of that, thou shalt look for someone financially stable, in order to avoid the first lesson.)

3. Thou shalt tell him to chill. Listen: "Bug A Boo (H-Town Screwed Mix)"

"It's not hot" when a dude tweets, then texts, then calls, then tweets about how he texted you, and then sub-tweets about you tweeting but not replying. If he's paging, as he was paging Beyoncé in 1999, you may  need to learn another lesson.

4. Thou shalt realize women and men are both equally capable of some shady and lusty acts. Listen: "Confessions," "Temptation," "If You Leave" and "Jumpin', Jumpin'."

5. Thou shalt not let someone think it's that easy to get you back, after they've done you wrong.  Listen: "Now That She's Gone."
(Don't get carried away though, or you may find yourself at "Where'd You Go.")

6. Thou will be tempted to look elsewhere if not satisfied. Listen: "Temptation" and "If You Leave" and "Jumpin' Jumpin'."

If there's one thing you'll walk away with after listening to "The Writing's On the Wall" is that: If one isn't satisfied, eyes -- and hands in this case -- are bound to wander.

Related

7. Thou shalt know thy self-worth. Listen: "Bills, Bills, Bills" and "Hey Ladies."
"Bills, Bills, Bills" spent nine weeks atop the Hot R&B/Hip-Hop Songs chart (it's the group's longest running No. 1). Perhaps because, while Destiny's Child told men to not take advantage, they were telling women to know our worths.

"Hey Ladies" carries the album's strongest message: You're better than this.

8. Thou shalt put on one's little black dress (or the whatever the male equivalent  is to the little black dress) when stressed. Listen: "Jumpin', Jumpin'"

9. Thou shalt trust one's intuition.

One of Destiny's Child's best singles, "Say My Name," touches on one's insecurities and doubts -- which who can't relate to?

"She Can't Love You" -- coincidentally the song that follows "Say My Name" features the women post-lesson, and relaying it right along to the guy that brought them to that point.

10. Thou shalt walk away, instead of taking karma into one's own hands.
Seeing that the album features Destiny's Child taking revenge on those who have done them wrong, this lesson is learned from reverse psychology.