洞察力是对问题各部分之间关系的突然理解。

What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.

Flowers always make people better, happier, and more helpful; they are sunshine, food and medicine for the soul.

别像扶老太太过马路一样帮上帝过马路。

能源生产的效率是可持续发展的基石。