External objects produce decided effects upon the brain. A man shut up between four walls soon loses the power to associate words and ideas together. How many prisoners in solitary confinement become idiots, if not mad, for want of exercise for the thinking faculty!


Journey to the Center of the Earth (1864)


External objects produce decided effects upon the brain. A man shut up between four walls soon loses the power to associate words and ideas together. ...

External objects produce decided effects upon the brain. A man shut up between four walls soon loses the power to associate words and ideas together. ...

External objects produce decided effects upon the brain. A man shut up between four walls soon loses the power to associate words and ideas together. ...

External objects produce decided effects upon the brain. A man shut up between four walls soon loses the power to associate words and ideas together. ...