Youth is not a time of life; it is a state of mind; it is not a matter of rosy cheeks, red lips and supple knees; it is a matter of the will, a quality of the imagination, a vigor of the emotions; it is the freshness of the deep springs of life.

盈利和环境责任并不相互排斥，如果做得对，它们是相辅相成的。

在一个充满干扰的环境中，阅读是一种抵抗行为。

Mental activity is always directed toward some end.