釋義：仔細(xì)觀察時(shí)局的變化，順應(yīng)形勢(shì)的發(fā)展并加以引導(dǎo)。這句話強(qiáng)調(diào)要善于把握時(shí)機(jī)，靈活應(yīng)對(duì)變化。
What we know is not much. What we do not know is immense.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
Education has for its object the formation of character.