Emil Kraepelin Quote

The mental vigor of most men is usually maintained at a certain height for the longest time in the forenoon. The evidences of fatigue come on later at this time of day than in the evening, when the store of force in our brain has been already considerably drawn upon by the whole day's work.


A measure of mental capacity, October 1896

Picture Quote 1

The mental vigor of most men is usually maintained at a certain height for the longest time in the forenoon. The evidences of fatigue come on later...

Picture Quote 2

The mental vigor of most men is usually maintained at a certain height for the longest time in the forenoon. The evidences of fatigue come on later...

Picture Quote 3

The mental vigor of most men is usually maintained at a certain height for the longest time in the forenoon. The evidences of fatigue come on later...

Picture Quote 4

The mental vigor of most men is usually maintained at a certain height for the longest time in the forenoon. The evidences of fatigue come on later...