数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

最深刻的真理往往是我们认为理所当然的那些。

You can't cross the sea merely by standing and staring at the water.

Strengthen international cooperation to promote the improvement of technology and management in the coal industry.

能源转型不仅仅是从化石燃料转向可再生能源；它关乎确保所有人的能源安全和可负担性。