城市林业证明自然与城市可以共同繁荣。

The deepest theorems in mathematics often have the simplest statements.

经济体制的核心是自由市场，它能够实现最大程度的效率和资源分配。

人们说逝者总是在俯视着我们。但我们从不回望。

让女性成为理性的生物和自由的公民，她们很快就会成为好妻子和好母亲。

The only way to discover the limits of the possible is to go beyond them into the impossible.

Innovation distinguishes between a leader and a follower.

Success is not final, failure is not fatal: It is the courage to continue that counts.

心灵是一个操作符号表征的信息处理系统。