The greatest happiness of life is the conviction that we are loved; loved for ourselves, or rather, loved in spite of ourselves.

"Stories have the power to change how we see ourselves and others."

The process of mathematical discovery is as important as the discovery itself.

The earth gives us its treasures, but it's our duty to give back more than we take.

煤炭的未来取决于我们创新和减少其环境影响的能力。