Economic history teaches us that change is possible, but it is rarely easy.
经济史告诉我们,改变是可能的,但很少是容易的。
可持续性不再是一个选择;它是皮革鞣制未来的必要条件。
In science, failure is not the opposite of success but a stepping stone towards it.
"A good picture book is like a silent movie; it tells a story without words."