如果你想解决大问题，首先要提出正确的问题。
If you want to solve big problems, start by asking the right questions.
我不是因为快乐而歌唱，我歌唱是因为我快乐。
I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single political argument left.
The only way to do great work is to love what you do.