The best time to plant a tree was 20 years ago; the second best time is now.
Love helps us find our way.
The most rewarding part of my job is seeing our medicines make a difference in people's lives.
The study of learning algorithms must consider both the statistical and computational aspects of learning.
出门时笑一笑,不要心怀悲哀,广阔的胸怀处处都能敞开。