每一次挫折都是卷土重来的铺垫。
Every setback is a setup for a comeback.
Escribir es como tallar en mármol: cada palabra debe ser precisa e irrepetible.
可持续发展不是一个流行词,而是每天做得更好的承诺。
Language is the only homeland we truly possess.
Rigor in proof is what separates mathematics from all other sciences.