免费游戏最贵的成本是玩家的信任，一旦透支就再也买不回来。

"Every saint has a past, and every sinner has a future."

"The most beautiful thing we can experience is the mysterious. It is the source of all true art and science."

Forests are the lungs of our planet; we must treat them with the respect they deserve.

The most beautiful things in life are not things, but moments and emotions.

死者既已安葬,活着的人就不要长久地哭泣,而应该尽快做事,每个人都做自己能做的事,并用来使大家互利。

一本书就是你手中握着的梦想。