推进人工智能的关键是开发能够从更少的例子中学习并更好地推广到新情况的系统。

To sing is to pray twice.

Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.

小说是揭示伟大真理的伟大谎言。