石墨烯是一种灰姑娘材料：它一直存在，但没有人注意到它。
The database is the most important piece of software in the enterprise, and the most important piece of software in the enterprise is the database. The database is the foundation of all applications. The database is the heart of the application, and the application is the heart of the business.
Life is too short to hold grudges.
Your present state determines your future.