在数学研究中,坚持是关键;许多伟大的成果来自于一遍又一遍地从不同角度看待同一个问题。
"The past is never dead. It's not even past."
一个词的意义在于它在语言中的使用。
假若他日相逢,我将何以贺你?以沉默,以眼泪。
I'm not afraid to fall, because I know I'll get back up.
The ethical implications of genetic modification must be carefully considered.