【讲解】:发奋时候竟忘记吃饭,快乐时候就忘记了忧愁,把自己就要老了这件事也不放在心上,如此罢了。”
数学的本质在于它的自由。
Le ciel est, par-dessus le toit, / Si bleu, si calme!
The worse a situation becomes, the less it takes to turn it around, the bigger the upside.
The only thing that can stop you is you.