Our true nationality is mankind.

Human history becomes more and more a race between education and catastrophe.

The new century will see changes that will dwarf those of the last.

I must confess that my imagination refuses to see any sort of submarine doing anything but suffocating its crew and floundering at sea.

No one would have believed in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man's and yet as mortal as his own; that as men busied themselves about their various concerns they were scrutinised and studied, perhaps almost as narrowly as a man with a microscope might scrutinise the transient creatures that swarm and multiply in a drop of water.

The past is the beginning of the beginning and all that is and has been is but the twilight of the dawn.

'It is love and reason,' I said, 'fleeing from all this madness of war.'