The secret of happiness is to see all the marvels of the world, and never to forget the drops of oil on the spoon.

Over the piano was printed a notice: Please do not shoot the pianist. He is doing his best.

行为法则与物理学法则一样精确。

心理学应阐明我们如何应对环境。

无限的努力是打开潜能的关键---而不是实力与头脑。

人们永远不会注意到已经做了什么；人们只能看到还有待完成的事情。