Machine learning is the science of getting computers to act without being explicitly programmed.

I believe in pink. I believe that laughing is the best calorie burner. I believe in kissing, kissing a lot. I believe in being strong when everything seems to be going wrong. I believe that happy girls are the prettiest girls. I believe that tomorrow is another day and I believe in miracles.

板块构造理论的美妙之处在于，它用如此简单的理论解释了如此多的现象。