Mental phenomena can only be understood in terms of their consequences for action.

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.

I'm trying my hardest, but I can't have everything. I can't have the looks, the rapping ability, the scoring, and the free throws.

"The key to advancing AI is to develop systems that can learn from fewer examples and generalize better to new situations."

现在是一个转瞬即逝的时刻，而过去是永恒的。