To live a happy life, one must understand the art of looking beyond and letting go.
Examples (Wiktionary)
Mandarin
其实这种道理，到了现在，他们也该早已懂得，……
其實這種道理，到了現在，他們也該早已懂得，……
qí shí zhè zhǒng dào lǐ ， dào le xiàn zài ， tā men yě gāi zǎo yǐ dǒng de ， ． ． ． ． ． ．
Actually, they should have long since understood this kind of reasoning...
Mandarin
必须懂得，没有肃清的暗藏的反革命分子是不会死心的，他们必定要乘机捣乱。
必須懂得，沒有肅清的暗藏的反革命分子是不會死心的，他們必定要乘機搗亂。
bì xū dǒng de ， méi yǒu sù qīng de àn cáng de fǎn gé mìng fèn zǐ shì bù huì sǐ xīn de ， tā men bì dìng yào chéng jī dǎo luàn ．
It must be understood that the hidden counter-revolutionaries still at large will not take things lying down, but will certainly seize even opportunity to make trouble.
Mandarin
不过，我难免觉得不甘心——因为，我对超市的其他生鲜食品也好奇极了，却只能气愤自己只懂得用微波烤箱。
不過，我難免覺得不甘心——因為，我對超市的其他生鮮食品也好奇極了，卻只能氣憤自己只懂得用微波烤箱。
bù guò ， wǒ nán miǎn jué de bù gān xīn — yīn wèi ， wǒ duì chāo shì de qí tā shēng xiān shí pǐn yě hào qí jí le ， què zhǐ néng qì fèn zì jǐ zhǐ dǒng de yòng wēi bō kǎo xiāng ．
That said, it was inevitable that I could not accept my failure—that's because I became curious of other fresh food products in the supermarket, yet I could only be mad at myself for only knowing how to use a microwave oven.
With this attitude, he chops up history, knows only ancient Greece but not China and is in a fog about the China of yesterday and the day before yesterday.
Mandarin
同时也只有在这种严肃的负责的实践过程中，才能一步一步地懂得正确的立场是什么东西，才能一步一步地掌握正确的立场。
同時也只有在這種嚴肅的負責的實踐過程中，才能一步一步地懂得正確的立場是什麼東西，才能一步一步地掌握正確的立場。
tóng shí yě zhǐ yǒu zài zhè zhǒng yán sù de fù zé de shí jiàn guò chéng zhōng ， cái néng yī bù yī bù de dǒng dé zhèng què de lì chǎng shì shén me dōng xi ， cái néng yī bù yī bù de zhǎng wò zhèng què de lì chǎng ．
Only in this process of serious and responsible practice is it possible gradually to understand what the correct stand is and gradually obtain a good grasp of it.