To read is to travel without moving.

"Mental life is a continuous adjustment to the environment."

The more you sweat in peace, the less you bleed in war.

预测蓬勃发展的积极情绪与消极情绪的比例约为3比1。高于这个比例，人们往往会蓬勃发展；低于这个比例，人们往往会萎靡不振。

体育教育的目标是发展完整的人，而不仅仅是他的肌肉。

"Life, he realize, was much like a song. In the beginning there is mystery, in the end there is confirmation, but it's in the middle where all the emotion resides to make the whole thing worthwhile."

"The only true wisdom is in knowing you know nothing."

我对活着充满热情，我不会因为害怕而浪费生命。