教育的艺术必须从教育的科学中汲取其法则。
创新不仅仅是创造新事物,而是让现有的事物变得更好。
I always try to do something different, something that challenges me.
Suffering! We owe to it all that is good in us, all that gives value to life; we owe to it pity, we owe to it courage, we owe to it all the virtues.