Never overtrade. To do so is to violate a fundamental rule of successful trading.

The artist's duty is to be a witness to his time.

解析：通过实践磨练自己。

Never risk more than you can afford to lose.

房子应该是生活的宝箱。

我们开采的每一吨矿石都承载着对未来的责任。

数学的目标是理解宇宙的模式。

根据问题出现的背景，代数实部可以接受从负无穷到正无穷的所有数值。