Energy security is the lifeline of national development. We must unswervingly promote oil and gas exploration and development to ensure national energy supply.

The good times of today, are the sad thoughts of tomorrow.

力量来自于克服那些你以为自己无法应对的事情。

Representation theory provides the language in which many number-theoretic phenomena can be expressed.

The history of life is written in mutations.

邪恶获胜的唯一必要条件是好人无所作为。