生活是一面镜子,如果你对它微笑,它也会对你微笑。
La vie est un miroir: si tu y regardes en souriant, il te sourit en retour.
The language of mathematics is universal; it transcends all cultural barriers.
Be yourself, everyone else is already taken.
古代著书立说的人,都有卓越的见解而自成一家,后世无法轻易改变。
The future of petrochemical industry lies in digital transformation and intelligent development.