君子有三种快乐,但称王天下不在其中。父母都健在,兄弟没有灾祸,这是第一种快乐;抬头无愧于天,低头无愧于人,这是第二种快乐;得到天下的优秀人才而教育他们,这是第三种快乐。
在和平时期,儿子埋葬父亲。在战争中,父亲埋葬儿子。
You are not defined by your past.
A culture of continuous improvement is what separates good companies from great ones.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.