Natural history is a matter of observation; it is a harvest which you gather when and where you find it growing. Birds and squirrels and flowers are not always in season, but philosophy we have always with us. It is a crop which we can grow and reap at all times and in all places and it has its own value and brings its own satisfaction.
John BurroughsThe countries outside the Non-Proliferation Treaty also are bound by that obligation [ Article Six of the treaty] according to, at least it's a strong implication of, a 1996 opinion of the International Court of Justice.
John Burroughs