There are nine countries in the world that have nuclear weapons. There are about 27,000 nuclear weapons total on the planet. The countries that have nuclear weapons deploy them ready for use and have doctrines saying that they would use them in certain circumstances.

Nature will not be conquered, but gives herself freely to her true lover - to him who revels with her, bathes in her seas, sails her rivers, camps in her woods, and with no mercenary ends, accepts all.

We cannot walk through life on mountain peaks.

The deeper our insight into the methods of nature . . . the more incredible the popular Christianity seems to us.

Love is the measure of life; only so far as we love do we really live.

The pleasure and value of every walk or journey we take may be doubled to us by carefully noting down the impressions it makes upon us.

The sunbeams are welcome now. They seem like pure electricity—like friendly and recuperating lightning. Are we led to think electricity abounds only in summer, when we see in the storm-clouds as it were, the veins and ore-beds of it? I imagine it is equally abundant in winter, and more equable and better tempered. Who ever breasted a snowstorm without being excited and exhilarated, as if this meteor had come charged with latent auroræ of the North, as doubtless it has? It is like being pelted with sparks from a battery.