皮革工艺的艺术是过去与未来之间的对话。

进步的方法是承认无知。

The beauty of virology is that viruses teach us the rules of life by breaking them.

I do not know what I may appear to the world， but to myself I seem to have been only like a boy playing on the sea-shore， and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary， whilst the great ocean of truth lay all undiscovered before me.

Farmers are the original environmentalists; we must support them in this critical role.

成功的关键是坚持。