It is a law of nature we overlook, that intellectual versatility is the compensation for change, danger, and trouble.

If we don't end war, war will end us.

Looking at these stars suddenly dwarfed my own troubles and all the gravities of terrestrial life. I thought of their unfathomable distance, and the slow inevitable drift of their movements out of the unknown past into the unknown future.

We must not allow the clock and the calendar to blind us to the fact that each moment of life is a miracle and mystery.

If anything is possible, then nothing is interesting

This isn't a war," said the artilleryman. "It never was a war, any more than there's war between man and ants.

There are no social differences - till women come in.