The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.

The coal industry must evolve or risk becoming obsolete. Adaptation is the key to survival.

Abundance is not something we acquire. It is something we tune into.

Simplicity is the ultimate sophistication in design.

The world is full of people who have never, since childhood, met an open doorway with an open heart.

成为人就是永远不完整，永远在寻找。