The seabbard is content to be dull when it protects the keenness of the word.

To understand a program you must become both the machine and the program.

诗人的使命是表现未被表现的事物。

Literature is a way to keep the fire of humanity alive.

The basis of a democratic state is liberty.

To understand chemistry at its most fundamental level, we must look at the dance of electrons in molecules.

材料的使用方式有其政治性。