The improvement of understanding is for two ends: first， our own increase of knowledge； secondly， to enable us to deliver that knowledge to others.
理解的提高有两个目标：首先，我们自己的知识增长；其次，使我们能够将这些知识传递给他人。
O mundo é um livro, e quem não viaja lê apenas uma página.
你的雨无法落下是因为我。
The theatre is a place where we can confront our demons in public.
Without freedom, there is no creation.
“唯一无限的是宇宙和人类的愚蠢。”
The coal industry must evolve to meet modern environmental standards, or it will become obsolete.
"Always be prepared for the unexpected."
