让这成为一个准则:永远不要给孩子一本你自己不愿意读的书。
Make it a rule never to give a child a book you would not read yourself.
数学之美不在于其复杂性,而在于其简洁性以及它揭示隐藏真理的方式。
"No one can build you the bridge on which you, and only you, must cross the river of life."
在科学中,没有所谓的最终答案。
"The universe is not only stranger than we imagine, it is stranger than we can imagine."