When you’re a 20 something, you know you need to be mature because you’ve grown up. You’re seen as an adult, not a kid any more. It’s reality, and you really should face it. The faster you learn the most difficult life lessons, the sooner you can lead a great and successful life. Rich Tatum shared the most difficult things he wished he knew when he was 20 on quora:

当你已经二十几岁了，你会明白自己已经长大了，需要变得成熟了。别人都不会再当你是个孩子了，而是会把你当做成年人一样对待。这是你应该要面对的事实。你越早学会生活里最难的课程，你就能越早地过上光彩成功的生活。里奇· 塔特姆在quora上分享了他希望自己在20岁的时候就已经能够明白的那些最不容易的事情。

1.Love hurts, but not as much as not loving.

爱人会有伤心的时候，但是不爱更伤心。

2.The friendships you nurture will have a greater effect on your life than where you work or what you earn.

你精心栽培的友情对你的人生有很大影响，甚至超过了你工作的地方和学习到的知识。

3.You are not your job. You are not your bankroll. You are not the sum of your possessions.

你的工作不是你的全部。你的工资单也不是你的全部。你更不是你所有财产的总和。

4.The company does not love you. It has no heart. You are replaceable. Keep your parachute handy.

你的公司不会爱你。公司是没有感情的。你是可替代的。随时准备好自己的“跳伞”。

5.Few decisions will ever shape your future life more than who you choose to marry. To marry well, you must choose well.

你选择和谁结婚是决定你未来人生的最重要的决定，没有之一。和对的人结婚，前提是你要做出对的选择。

6.Love is a commitment.

爱是一种承诺。

7.Believe it or not, passions grow out of your values. Make early, wise choices to value what (and who) is good, trustworthy, and praiseworthy.

不管你信不信，激情来源于你的价值观。早一点做出明智的选择，明确对自己来说什么或者谁才是好的、值得信赖的以及值得称赞的。

8.Integrity preserved is honor won.

保持完整的人格就是为自己赢得的荣耀。

9.Rejoice in your health. It fades fast.

为自己健康的体魄感到高兴，因为健康容易很快消逝。

10.Find a passion. Pick a hobby, own it: photography, juggling—whatever. Get your 10K hours of perfect practice in early and change your life.

找到让你感觉到激情的事情。选择一个爱好，拥有它：摄影、杂技或者随便什么。早点享受犹如纯10k金般珍贵的时间，从此改变你的生活。

11.Don’t bother comparing yourself to others—this only leads to heartbreak, anger, and disappointment.

不要与他人比较——这只会让你心碎、生气或者失望。