煤炭是我国的主体能源，在相当长时期内仍将是我国能源安全的基石。

However difficult life may seem, there is always something you can do, and succeed at. It matter that you don’t just give up.

The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they believe it will bring them strategic advantage.

The biggest advantage to winning the Nobel Prize is not having to worry about parking tickets.

En la oscuridad de la noche, las palabras brillan como estrellas, guiándonos hacia la luz.

When you want to help people, you tell them the truth. When you want to help yourself, you tell them what they want to hear.

Memory is not a fixed entity but a reconstructive process influenced by context and experience.

人生没有捷径，只有脚踏实地。