Theorems are the milestones of mathematics.
释义:君子在面对挫折、困难的时候,应该反躬自问,修养品德。蹇(jiǎn),多指行动迟缓、困苦、不顺利的意思。
The role of the writer is to bear witness, to tell the stories that need to be told, to give voice to the voiceless.