The child who is beginning to learn algebra never takes kindly to x, y and z ; he is only satisfied when he is told that they are: numbers of apples or pears or something such.


Physics and Philosophy, Chapter I (p. 9)


The child who is beginning to learn algebra never takes kindly to x, y and z ; he is only satisfied when he is told that they are: numbers of apples...

The child who is beginning to learn algebra never takes kindly to x, y and z ; he is only satisfied when he is told that they are: numbers of apples...

The child who is beginning to learn algebra never takes kindly to x, y and z ; he is only satisfied when he is told that they are: numbers of apples...

The child who is beginning to learn algebra never takes kindly to x, y and z ; he is only satisfied when he is told that they are: numbers of apples...