我不怕失败，因为失败是成功的一部分。

The world is a puzzle, and the pieces are scattered everywhere.

The sun is our most powerful tool in Africa. We must learn to work with it, not against it.

平凡与非凡之间的区别就在于那一点点额外的努力。

持续改进不是目的地，而是一场永无止境的旅程。