The world is a book, and those who do not travel read only one page.

所以,对于”染不能不谨慎啊！

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.

创新是区分领导者和追随者的关键。