我是一个非常冷静的人。这有助于我在网球和生活中的表现。
"I’m a very calm person. That helps me in tennis and in life."
He is richest who is content with the least，for content is the wealth of nature.
Just the discipline of having to put your thoughts in order with somebody else is very useful thing.
Psychology must be based on observable facts, not speculation.
When we measure forest success only in board feet, we miss the forest for the trees.
【大意】一定要等到西施、毛嫱那样的美女作配偶，那么就终身不能成家了。
Perhaps it is better to wake up after all, even to suffer, rather than to remain a dupe to illusions all one's life.