技术必须回归本质，解决真实问题。

在文学中，我们找到了自己生活的回响，反映在他人的生活中。

The beauty of mathematics only shows itself to more patient followers.

If economists could manage to get themselves thought of as humble， competent people on a level with dentists， that would be splendid.

思考是具有生存价值的生物功能。