About 20% of beer drinkers drink 80% of the beer in the world.

約略 20% 的啤酒飲用者喝了世上 80% 的啤酒。

About 20% of a company's customers account for 80% of the complaints.

約略 20% 的公司顧客提出了 80% 的抱怨。

This principle shows up over and over again in almost every field, and is called the 80/20, or the Pareto, principle.

幾乎每個領域都一再地出現這個原則，而它被稱為 80/20 法則，又稱帕累托法則。

The ratios might vary from one example to another, but try to focus on a deeper meaning of the principle:

此比率可能隨著例子不同而有所變化，但試著把焦點集中在它的深層涵義：

The majority of the effects come from the minority of the causes.

大部分的結果來自少部分的原因。

So, let's take a look at how this works in business, social interactions, and relationships.

所以讓我們看看它在商業上、社交與男女關係中如何運作。

Here's how it works in business.

首先介紹它如何運用在商業上。

A few months ago, I had built a website and was getting my visitors from social media like Reddit, Pinterest, Twitter, and other social media and forums.

幾個月前我建置了一個網站，而瀏覽者來自各種社群媒體，例如：Reddit、Pinterest、Twitter 和其他社群媒體與論壇。

In fact, this took so much time that I was unable to write as many articles as I wanted to.

事實上這耗費了我許多時間，而且也不能如我所願的撰寫更多文章。

So, I decided I was going to make the process more efficient.

因此我決定讓過程變得更有效率。

I looked into my data, and guess what I found?

深入觀察了這些數據後，你們猜我發現什麼呢？

For every 1,000 visitors I got from Reddit, I got only about 60 from Pinterest, 20 from Twitter, and a few more 20s from other forums and social media.

我每從 Reddit 獲得 1000 個訪客，同時來自 Pinterest 的訪客卻只有 60 個，Twitter 有 20 個，還有其他論壇與社群媒體各有 20 個。

I thought, "I'm an idiot; I'm spending the same amount of time on all these platforms, yet look at the results."

我覺得自己就像個傻瓜，我在這些平台花費了同等的時間，卻沒有仔細查看實際成果。

So, I basically completely cut out the ones with the least effect, and it freed up so much time for me to write actual articles that people were interested in.

所以我主要把那些帶來最少效用的來源完全移除，而這讓我有更多時間來書寫人們感興趣的文章。

And that made a huge difference in how my website performed.

因此也對我的網站表現造成了巨大的改變。

Now, let's take a look at social interactions.

現在來瞧瞧社交部分。

In college, I dedicated roughly the same amount of time to the top ten people I hung out with.

大學時，我大致上投入相等的時間在前 10 個有所往來的朋友身上。

But I realized that the majority of the value and happiness brought into my life only came from two or three of those people.

但我明白主要為我生命帶來價值與快樂的，其實只來自其中的二至三人。

So, I thought, "I'm an idiot; what am I doing?"

因此我想，「我真是個傻瓜！我到底在做什麼呢？」

I decided to dedicate my time to the two or three of those people, and that freed up so much time for me to read, meditate, go to the gym, and to really develop myself.

我決定只把時間花在那二到三個人身上，這也使我多出許多時間來閱讀、沉思、到健身房運動，以及確實地發展自我。

Let's take a look at relationships.

接著來看看男女關係吧。

A boyfriend or a husband comes home from work.

有一個男友或老公下班後回到家。

After five hours of spending time with her [sic] girlfriend or wife, she complains, "You don't spend any time with me!"

在花五小時陪伴他的女友或妻子後，她卻抱怨：「你沒有花任何時間來陪我！」

The guy has no idea what is going on.

他不清楚到底怎麼回事。

He just spent five hours with this woman, but did he really?

他才剛花五小時的時間陪伴她不過，他真的有嗎？

In those five hours, even though he talked to her and physically was with her, his focus was also on watching TV half of the time, and the rest, checking his Facebook and his phone.

在那五小時中，即使他們彼此有所交談、他也實際上在她身旁，但他的注意力有一半的時間放在電視節目上，而剩餘時間則在看 Facebook 和手機。

Another guy could've worked longer hours, come home, and only spend an hour⏤literally, a single hour⏤with her and she would never complain, because he would make that one hour all about her.

另一個人可能工作更長的時間，不過他回家後只花了一小時，就單單這麼一個小時來陪伴她，她卻從不抱怨，因為他在那一小時裡把注意力完全放在她身上。

And that is the 80/20 principle applied to business, social interactions, and relationships.

上述就是 80/20 法則應用到商業、社交與男女關係的說明。

As a final thought, ironically, what I have done with my video follows the 80/20 principle as well.

最後，有點奇妙的是我製作此影片其實也遵循了 80/20 法則。

I have shared about 80% or even more of the value found in the book, in 20% or even less time.

我分享了這本書所蘊含的 80% 或更多的價值，卻只用了 20% 甚至更少的時間來完成。