The only real mistake is the one from which we learn nothing.
唯一真正的错误是我们从中什么也没学到的错误。
"The best way to learn mathematics is to do mathematics."
我们听到的言语暗示了我们没有听到的东西。
学习古人的文章,必须先理解其思想内涵,然后再学习其文辞表达。
真正的发现之旅不在于寻找新的风景,而在于拥有新的眼光。
In science, as in life, the important things are rarely simple or obvious.