You can't have a better tomorrow if you're still thinking about yesterday.

However difficult life may seem, there is always something you can do and succeed at.

Sorrow is knowledge.

过去是一个陌生的国度；那里的人们做事方式不同。

21世纪的领导力需要远见和适应性；蓬勃发展的公司将是那些预见变化而不是抵制变化的公司。

Psychology must be purely experimental and analytical.

音乐应该激励人心。这就是我写歌的原因。

Do not try to change the outer world; change your inner world, and the outer world will adjust itself.