This proverb means that there are some things you can't do alone. The tango is dance for two people, so you can't dance the tango alone.

The proverb comes from a 1952 song It Takes Two to Tango:

- It Takes Two to Tango (1952, Al Hoffman, Dick Manning and Pearl Bailey) - Check out the sources to listen to the original recording!

This proverb has many different meanings that you can apply in your daily life and relationships.  There are lots of things in life that require more than one person: It takes two people to cooperate, to make a bargain or to engage in a fight. You may really want to dance with someone, but if they don't want to dance with you, it's better to move on.  Similarly, if you're in a fight, consider how your own behavior might be contributing to continuing the fight. A dance isn't about being perfect, it's about being in time with your partner and enjoying the experience. 

Similar proverbs from Africa:
Egyptian (Arabic):

Swahili:

One day a renown businessman wanted to hire an assistant. He received many resumes, but only two candidates met his high standards: Alice and Bob. To help him decide, he called both, and they each agreed to come in for an interview the following morning. "9 AM. Look sharp and don't be late." The manager warned.

The next morning Alice woke up early, donned her best suit and got to the village bus station at 8:00am. "Better safe than sorry," she thought.  On the way to town, the front of the minibus began to smoke. The driver pulled over in the bush and told all the passengers to get out. Just then it started to rain. Alice tried to wave down each bus that passed, but they were all full, so she had to walk on foot. 9am came and went, but Alice was still miles from town and the rain was getting harder. "I must keep going." she thought, "Better late than never."

Meanwhile in town, Bob woke up in his apartment, and saw the sun was high in the sky. He sat up suddenly. "Oh no! Why did my alarm fail?" He looked at the clock on his wall: 9:00 am. "Forget it. Even if I leave right now, I'll still be late, and they'll never hire someone who is late." So Bob, feeling depressed, went back to sleep.

At 10:30, Alice finally made it to the office and knocked on the door, her neatly pressed suit now dripping and muddy. The businessman answered.
"I warned you to be on time, yet you are over an hour late, how can you expect me to give you this job?"
Then Alice explained all that had happened.
"I have learned a lot about you from this story, Alice. When you have a purpose in mind, you persist despite and obstacles and don't give up, even when it seems too late. In fact, you are the first to arrive today. The other candidate did not show up at all. The job is yours."

Great achievements and inventions often begin with a lot of failures, but in the long run, persistence and learning are rewarded.  People make a lot of mistakes (to err is human), but life is very patient with us, giving us lots of chances to learn from them and try again, as long as we don't give up.

Some say the proverb "Better late than never" comes from The Canterbury Tales, written by Chaucer around the 1390s.

Others trace the proverb to an even earlier origin, in Livy's History of Rome, written around 20 BC:

A similar saying in English is "It's never too late." 
Here's a proverb that relates to the same principle in Hindi:

And here's an English proverb that often means the opposite of this one:

What one person throws away may be useful and valuable to someone else.

This saying is often used to describe either the diversity of human preferences or to express optimism that humans are quite creative when it comes to repurposing or recycling what other people throw away.

For example, entrepreneur Gibson Kiwago, founder of WAGA Tanzania, recycles old laptop batteries to power homes and businesses in Tanzanzia. Check out our E-Waste Reading List!

The notion that people subjectively assess quality has been around a long time. The saying derives from a 17th century proverb:

Have you ever seen value in something that someone else threw away?

That which draws our attention, gets more attention. 

A wheel that makes noise is more likely to receive oil than other wheels (that also might need oil). We have limited attention, and thus we give our attention to people, projects and problems that stand out. This proverb asserts that there is not necessarily a correlation between the things we give our attention to and the things that actually need our attention.

Another version of the proverb is "the squeaky wheel gets the grease," and though the origin is unknown, American humorist Josh Billings is commonly attributed through his poem "The Kicker" in 1870