I know that I am intelligent, because I know that I know nothing.

Those who educate children well are more to be honored than they who produce them; for these only gave them life, those the art of living well.

Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.

Well the protester I think is a very powerful thing. It's basically a mechanism of democracy that, along with capitalism, scientific innovation, those things have built the modern world. And it's wonderful that the new tools have empowered that protestor so that state secrets, bad developments are not hidden anymore.

Let us permit nature to have her way. She understands her business better than we do.