I don't sing because I'm happy; I'm happy because I sing.
我不是因为快乐而唱歌;我因为唱歌而快乐。
复杂性理论告诉我们,并非所有问题都是平等的;有些问题本质上比其他问题更难。
Maktub. If I am really a part of your dream, you'll come back one day.
You can't start the next chapter of your life if you keep re-reading the last one.