Real friends are hard to find.
真正的朋友是很难找的。
每个程序都是其他程序的一部分，很少适合。
【译文】与人说话只能说三分，不能把内心的想法全部吐露给别人。有意栽花花不一定开放，无意去插柳柳树却可能长得茂盛。龙和虎的形态好画，却难以画出它们的骨骼。了解人的表面很容易，但了解人的内心却十分困难。
Policymakers should be open to revising their views based on new evidence.
We are moving from a word-based culture to an image-based culture.
Great dancers are not great because of their technique, they are great because of their passion.
The key to artificial intelligence is the representation of knowledge.