The most expensive cost in free-to-play games is players' trust—once overdrawn, it can never be bought back.

I embrace challenges because they make me stronger.

I don’t like to be small. I like to be big.

记忆是一件复杂的事情，是真相的亲戚，但不是它的双胞胎。

Westward the course of empire takes its way.

知识在心灵中以符号结构的形式表征。