The social consequences of this state of affairs were ominous: children of the poor die at three times the rate of children of the middle classes . 这种事态的社会后果是使人不安的：穷人儿童的死亡率，为中等阶级儿童死亡率的三倍。
2.
Gaining real knowledge requires taking risks and keeping the mind open - - but most people prefer to be reassured rather than to learn the complex and often unsettling truth about anything 获取真正的知识需要冒险，并且要有开放的心灵，但是大多数人更喜欢确定感，而不是去了解事物复杂的，甚至是使人不安的真相。
