Youth is not a time of life; it is a state of mind; it is not a matter of rosy cheeks, red lips and supple knees; it is a matter of the will, a quality of the imagination, a vigor of the emotions; it is the freshness of the deep springs of life.

安全总是过度的，直到它不够为止。

世界是由转瞬即逝的时刻组成的马赛克，每一个时刻本身都是珍贵的。

在网球中，就像在生活中一样，你必须不断前进——一次一分。