Psychology is a science, and teaching is an art; and sciences never generate arts directly out of themselves.

The most important thing is to enjoy your sport. If you don't enjoy it, it's very difficult to achieve good results.

True progress is measured not just in yields, but in the positive impact we create.

The horror of the Twentieth Century was the size of each new event, and the paucity of its reverberation.

"The power of words is immense; they can heal, they can destroy, and most importantly, they can transform."

我们可以在游戏和体操中，在陆地和水中旅行时，在空气和海洋的风暴中，以及在任何有物质运动的地方，找到科学最高学说的例证。

The past is not dead, it is not even past.