The will to learn is an intrinsic motive, one that finds both its source and its reward in its own exercise.
幸福并不容易。很难在我们内心找到它,更不可能在别处找到它。
The key to performance is elegance, not battalions of special cases.
世界会打碎每个人,之后,许多人在破碎的地方变得坚强。
Tennis is a brutal sport. There is no place to hide out there.