不疯不狂不叫青春不拼不赌不算人生
[bù fēng bù kuáng bù jiào qīng chūn bù pīn bù dŭ bù suàn rén shēng]
It translates to something along the lines of: If you don't go crazy or wild, it's not called youth; without struggle and risk-taking, it cannot be considered a life fully lived. It expresses the pursuit of passionate experiences and living an unconventional or adventurous lifestyle.