艺术是对生活对我们所做之事的回应。
Art is a response to what life does to us.
Every artist dips his brush in his own soul, and paints his own nature into his pictures.
Positive emotions are not trivial luxuries, but instead may be critical necessities for optimal functioning.
我们必须倾听祖先的低语，因为他们掌握着时代的智慧。
游戏是儿童的工作。
我在数学上花费的时间越多，我就越感到兴奋。
Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.