生活充满不确定性，而这正是它有趣的地方。

I’m focused on what I need to do to be great.

There are no shortcuts in life, only down-to-earth efforts.

Over one's mind and over one's body the individual is sovereign.

教师的人格是教育的基石。

Nature is a wonderful teacher, and if we will only be patient and observe, she will reveal her secrets to us.

Every moment of one's existence one is growing into more or retreating into less.