It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.


The diary and sundry observations of Thomas Alva Edison (ed. Greenwood Pub Group, 1968)


It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.

It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.

It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.

It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.