I write to cover a frame of ideas.

Night, the mother of fear and mystery, was coming upon me.

It's no use locking the door after the steed is stolen.

Biologically the species is the accumulation of the experiments of all its successful individuals since the beginning.

The great body of physical science, a great deal of the essential fact of financial science, and endless social and political problems are only accessible and only thinkable to those who have had a sound training in mathematical analysis, and the time may not be very remote when it will be understood that for complete initiation as an efficient citizen of one of the new great complex worldwide States that are now developing, it is as necessary to be able to compute, to think in averages and maxima and minima, as it is now to be able to read and write.

You must follow me carefully. I shall have to controvert one or two ideas that are almost universally accepted. The geometry, for instance, they taught you at school is founded on a misconception.

Is it any wonder that to this day this Galilean is too much for our small hearts?