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:

當你已經二十幾歲了，你會明白自己已經長大了，需要變得成熟了。別人都不會再當你是個孩子了，而是會把你當做成年人一樣對待。這是你應該要面對的事實。你越早學會生活里最難的課程，你就能越早地過上光彩成功的生活。里奇· 塔特姆在quora上分享了他希望自己在20歲的時候就已經能夠明白的那些最不容易的事情。

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

愛人會有傷心的時候，但是不愛更傷心。

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

你精心栽培的友情對你的人生有很大影響，甚至超過了你工作的地方和學習到的知識。

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。你的工資單也不是你的全部。你更不是你所有財產的總和。

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

你的公司不會愛你。公司是沒有感情的。你是可替代的。隨時準備好自己的“跳傘”。

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

你選擇和誰結婚是決定你未來人生的最重要的決定，沒有之一。和對的人結婚，前提是你要做出對的選擇。

6.Love is a commitment.

愛是一種承諾。

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，激情來源于你的價值觀。早一點做出明智的選擇，明確對自己來說什么或者誰才是好的、值得信賴的以及值得稱贊的。

8.Integrity preserved is honor won.

保持完整的人格就是為自己贏得的榮耀。

9.Rejoice in your health. It fades fast.

為自己健康的體魄感到高興，因為健康容易很快消逝。

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.

找到讓你感覺到激情的事情。選擇一個愛好，擁有它：攝影、雜技或者隨便什么。早點享受猶如純10k金般珍貴的時間，從此改變你的生活。

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

不要與他人比較——這只會讓你心碎、生氣或者失望。