The only countries that are outside of [ Nuclear Non-Proliferation Treaty] are Israel, Pakistan, India, and North Korea withdrew in the last few years.

How much there is in books that one does not want to know, that it would be a mere weariness and burden to the spirit to know.

[Invading Iraq] is not the best way to make a safer world in which the United States would be a responsible partner, but it also goes against the role of law in the United States.

To see Earth fully we already need to love it

In 2002 the [George] Bush administration effectively put an end to negotiations of an agreement which would have established inspection procedures to ensure or to monitor compliance with the existing legal ban on biological weapons.

Nature teaches more than she preaches. There are no sermons in stones. It is easier to get a spark out of a stone than a moral.

Nature exists for man no more than she does for monkeys, and is as regardless of his life or pleasure or success as she is of the fleas. Her waves will drown him, her fire burn him, and her earth devour him, her storms and lightning smite him, as if he were only a dog.