我不是因为快乐而唱歌，我因为唱歌而快乐。
I don't sing because I'm happy; I'm happy because I sing.
The key to performance is elegance, not battalions of special cases.
Sometimes the hardest part of the journey is believing you're worthy of the trip.
创新不仅仅是技术，而是改变我们的思维和运作方式。