In all activities of life, ...

In all activities of life, the secret of efficiency lies in an ability to combine two seemingly incompatible states: a state of maximum activity and a state of maximum relaxation.
In all activities of life, the secret of efficiency lies in an ability to combine two seemingly incompatible states: a state of maximum activity and a state of maximum relaxation.

Quotes from the same author

Experience is not what happens to you; it's what you do with what happens to you.
Experience is not what happens to a man. It is what a man does with what happens to him.
There is only one corner of the universe you can be certain of improving, and that's your own self.
Technological progress has merely provided us with more efficient means for going backwards.
No man ever dared to manifest his boredom so insolently as does a Siamese tomcat when he yawns in the face of his amorously importunate wife.