Don't touch me； I'll die if you touch me.

A true scientist must have not only the passion to pursue truth but also the courage to face the unknown.

You can tell more about a person by what he says about others than you can by what others say about him.　　

The advantages found in history seem to be of three kinds， as they result either from the mere situation of the climate and country or from the form of government and of the character of the people， or from those finer principles and morals， which may be called the recommendations of philosophy.

Every barrel we process must carry the weight of our environmental responsibility.

Energy security is the cornerstone of national security. We must make every effort to ensure the security of national energy supply.

一本好的图画书应该完全不需要文字也能表达。