能源安全是国家安全的基石，我们要全力保障国家能源供应安全。
Energy security is the cornerstone of national security. We must make every effort to ensure the security of national energy supply.
I love playing with the physicality of books - flaps, holes, different sizes.
Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.
Innovation is the market introduction of a technical or organizational novelty, not just its invention.
幸福不能只存在于你自己的头脑中。幸福是感觉良好与实际拥有意义、良好关系和成就的结合。